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Thermodynamics - Explaining the Critical Point
 
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This experiment demonstrates the behavior of carbon dioxide around the critical point. It shows the transition of a liquid-vapour-mixture to the supercritical state and back. Watch how the phase boundary disappears and reappears. There is also a short description of the process in a P-T-diagram. Created by mechanical engineering students and the Centre for New Meda at Bergen University College, Norway. www.hib.no/en/
Views: 50635 Senter for nye medier
Critical Point & Triple Point
 
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Critical Point & Triple Point Watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Er. Himanshu Vasishta, Tutorials Point India Private Limited
critical point, Subcooled  liquid, Superheated vapour In Hindi(properties of pure substances-6)
 
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In this video lecture we will discuss about critical point, Subcooled or compressed liquid,saturation point, Superheated vapour In Hindi. If you like our video then subscribe our channel and like our video. If you have any doubts then put your question in the comment box.
Views: 9628 MECH knowledge
supercritical fluids
 
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liquid CO2 is heated in a pressure cell until it reaches the critical point were it changes into a supercritical fluid
Views: 316981 Flachzange1337
[HINDI] CRITICAL POINT & its applications : SUBCRITICAL BOILER vs SUPERCRITICAL BOILER
 
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Like us on FB , instagram & twitter , LINKS down there Website : www.mechanicalguru.in Hello dosto mera name h Ankit Ras aur le k aaya hu appk lia Mechanical Guru ka ek aur latest episode aur ajj hum baat karenge ; contents : toh chaliye aage badte hai : Critical point Critical pressure , critical temperature , vapour dome Critical point applications Subcritical boiler Supercritical boiler Difference / comparision between subcritical & supercritical Subcritical boiler vs supercritical boiler Mujhe ummed h appko Mechanical Guru ka yeh episode pasand aaya hoga aur pasand aaye toh mere channel ko like , share aur subscribe jarrur karren kyuki m appk lia roj aisehi acchi videos le k aata rehta hu. Jai javan , jai kissan Youtube: https://www.youtube.com/c/MechanicalGuru Like us on fb : https://www.facebook.com/MECHANICALGURU Like us on instagram : https://www.instagram.com/ankit.mechanicalguru Like us on twitter : https://twitter.com/mechanical_guru
Views: 6658 Mechanical Guru
Properties of superheated steam
 
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Jeff Stevenson demonstrates one of the most misunderstood properties of steam - it is invisible. What you normally see coming off the top of a heated pot of water is steam that has cooled and condensed back into tiny drops of water vapor. It is possible to superheat steam. By adding heat to the invisible steam it's possible to raise the temperature well above 212 degrees Fahrenheit. In fact, you can even ignite a match with superheated steam. Imagination Station, Toledo's hands-on science center, is a vital non-profit organization that is an integral part of Toledo's economic, educational and social landscape. Imagination Station provides a critical layer of science enrichment by serving as an educational partner for teachers, schools and parents. It's with a thoughtful blend of exhibits, experiences, education and excitement that Imagination Station is inspiring future generations of scientists in Northwest Ohio. With more than 250 hands-on exhibits and demonstrations, Imagination Station delivers a multi-sensory experience that's as fun as it is educational. Visit us at http://www.imaginationstationtoledo.org
Views: 63008 ISTscience
Critical Point of a Pure Substance // Thermodynamics - Class 48
 
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The critical point of a Pure Substance! Very important concept specially for later when using Reduced Properties Check out the Thermodynamic Course Playlist here: http://goo.gl/JwCi0F -º--º--º--º--º--º--º--º--º--º--º--º--º--º--º--º--º-- LIKE the video, it helps me to know what you like SHARE the video with your friends! SUBSCRIBE to my channel so you get my new uploads! Contact: [email protected] Facebook: www.facebook.com/chemical.engineering.guy Twitter: www.twitter.com/ChemEngGuy Get More Courses and Study Material HERE: www.ChemicalEngineeringGuy.com
The Critical Point
 
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Explains what the critical point is and shows constant volume process at the critical volume, includes a demo. Made by faculty at the University of Colorado Boulder, Department of Chemical and Biological Engineering. Check out our Thermodynamics playlists: https://www.youtube.com/user/LearnChemE/playlists?shelf_id=11&view=50&sort=dd Are you using a textbook? Check out our website for videos organized by textbook chapters: http://www.learncheme.com/screencasts/thermodynamics
Views: 28579 LearnChemE
Supercritical Boiler Water Steam & Air Flue Gases
 
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دورة المياه والبخار في الغلايات التي تعمل بالضغوط فوق الحرجة (Supercritical Boilers)
Views: 7530 Ragab Abo Ammar
Chemical Thermodynamics 1.6 - Critical Point
 
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Short physical chemistry lecture on the critical properties of non-ideal gases. The critical point of a gas is the point where the first and second derivative of pressure with respect to molar volume is zero at the same temperature. All gases have a single unique critical point, which can be used to parametrize the van der Waals equation of state. Notes Slide: http://i.imgur.com/Trig719.png --- About TMP Chem --- All TMP Chem content is free for everyone, everywhere, and created independently by Trent Parker. Email: [email protected] --- Video Links --- Chapter Playlist: https://www.youtube.com/playlist?list=PLm8ZSArAXicLc8nf1sKLiA1tyS96oqNwz Course Playlist: https://www.youtube.com/playlist?list=PLm8ZSArAXicJAzGE7ebwSOiFN-f9xEOKu Course Review: https://www.youtube.com/playlist?list=PLm8ZSArAXicKxzkcm_4i0cvDExBseQC4n Other Courses: https://www.youtube.com/playlist?list=PLm8ZSArAXicIXArfap9Tcb8izqRPvE0BK Channel Info: https://www.youtube.com/playlist?list=PLm8ZSArAXicLlGO4Rvpz-D6vX8MFbOn4V --- Social Links --- Facebook: https://www.facebook.com/tmpchem Twitter: https://www.twitter.com/tmpchem LinkedIn: https://www.linkedin.com/in/tmpchem Imgur: https://tmpchem.imgur.com GitHub: https://www.github.com/tmpchem --- Equipment --- Microphone: Blue Yeti USB Microphone Drawing Tablet: Wacom Intuos Pen and Touch Small Drawing Program: Autodesk Sketchbook Express Screen Capture: Corel Visual Studio Pro X8
Views: 8602 TMP Chem
Critical Properties of a Fluid (T and P)
 
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An introduction to the critical temperature and pressure of a species and how it will relate to using equations of state. Made by faculty at the University of Colorado Boulder Department of Chemical and Biological Engineering. Check out our Material & Energy Balances playlists: https://www.youtube.com/user/LearnChemE/playlists?view=50&flow=list&shelf_id=8 Check out our website for screencasts organized by popular textbooks: http://www.learncheme.com/screencasts/mass-energy-balances Check out our website for interactive MEB simulations: http://www.learncheme.com/simulations/mass-energy-balances
Views: 16535 LearnChemE
Steam concept series video 2
 
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This is second video of the Steam Concept Series. In this video i have covered Triple point, Critical Point ,Specific Heat Capacity Concept and understanding of steam phase diagrams. This video will provide the practical understanding of these concept.
Views: 367 Lokesh Kumar Singh
Supercritical fluid critical point
 
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Visualize a supercrtical fluid and critical point. Supercritcal point of CO2 is seen using a PVT cell from Separex, with sapphire cell and independent control of pressure, temperature and volume of the cell.
Physics - Thermodynamics: (6 of 8) Triple Phase Diagram For Water
 
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Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the triple phase diagram for water.
Views: 39029 Michel van Biezen
PCAT: Phase Diagram for Water (Triple Point, Critical Point, Supercritical Fluid)
 
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► Pharmacy College Admission Test | General Chemistry | Periodic Properties, Atomic Theory, and Chemical Bonding | Intramolecular Forces and Intermolecular Forces Part 1B ► Lecture Description: - This lecture examines molecular structure and the impact of intramolecular and intermolecular interactions. Topics include: phase changes (fusion, freezing, vaporization, condensation, sublimation, and deposition), heating curve for water (heat of fusion, heat of vaporization, and molar heat capacity), and phase diagram for water (triple point, critical point, and supercritical fluid). ► Watch more at www.masterthecontent.com | Your career. Our passion. - View complete lessons complete with multiple in-lecture examples - Interactive table of contents makes it easy to search for and jump to specific topics - Interact with instructors ► Connect with us: - https://www.facebook.com/masterthecontentpcatprep - https://twitter.com/MTCtoday - https://plus.google.com/u/0/100536207031817220229/about
Views: 689 Master the Content
Supercritical water
 
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Direct observation of supercritical fluid water using Bassett-type hydrothermal diamond anvil cell. Temperature (red numbers shown above right) was increased under the constant volume. Pressure, therefore, increased with increasing temperature. Liquid water and vapor became supercritical fluid at around 373 degC and 22 MPa (~critical point of pure H2O). Playback speed x5 faster.  バセット型外熱式ダイヤモンドアンビルセル装置を用いた,超臨界水の直接観察実験です.1対のダイヤモンド製の観察窓と貴金属ガスケットに囲まれたサンプル室に液体の水と水蒸気(気泡)を入れ,体積一定のもとで加熱します.そうすると,加熱にともない圧力も上昇します.右上の赤い数字は温度 [℃]です.約373℃付近で,液体と気体の区別の無い超臨界水になるのが観察されます.このときの圧力は約22MPaです.温度を下げると,ふたたび液体の水と水蒸気とに分離します.この映像は5倍速にしてあります.(超臨界水・超臨界流体)
Views: 81825 kenm
Starting Fire in Water - Supercritical Fluid - Science at NASA
 
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A supercritical fluid (SCF) is any substance at a temperature and pressure above its critical point, where distinct liquid and gas phases do not exist. It can effuse through solids like a gas, and dissolve materials like a liquid. In addition, close to the critical point, small changes in pressure or temperature result in large changes in density, allowing many properties of a supercritical fluid to be "fine-tuned". Supercritical fluids are suitable as a substitute for organic solvents in a range of industrial and laboratory processes. Carbon dioxide and water are the most commonly used supercritical fluids, being used for decaffeination and power generation, respectively. Natural occurrence The atmosphere of Venus is 96.5% carbon dioxide and 3.5% nitrogen. The surface pressure is 9.3 MPa (93 bar) and the surface temperature is 735 K, above the critical points of both major constituents and making the surface atmosphere a supercritical fluid. The interior atmospheres of the solar system's gas giant planets are composed mainly of hydrogen and helium at temperatures well above their critical points. The gaseous outer atmospheres of Jupiter and Saturn transition smoothly into the dense liquid interior, while the nature of the transition zones of Neptune and Uranus is unknown. Theoretical models of extrasolar planets 55 Cancri e and Gliese 876 d have posited an ocean of pressurized, supercritical fluid water with a sheet of solid high pressure water ice at the bottom. Source: www.nasa.gov and https://en.wikipedia.org/wiki/Supercritical_fluid CREDIT: National Aeronautics and Space Administration Support the Channel vie BOOK DEPOSITARY Shopping Book Depository: Millions of books with free delivery worldwide http://www.bookdepository.com/?a_aid=Booklibrary Enjoy, Like and Subscribe:)
Views: 5746 Sherlock Holmes
What happens in Super-Critical point of CO2
 
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The video shows what happens in supercritical point of CO2 by decreasing the pressure through the critical pressure from 7.6 MPa to 7.0 MPa by constant critical temperature of 31.1 ºC. The CO2 is inside the high pressure optical cell equipped with sapphire glass. http://en.wikipedia.org/wiki/Supercritical_carbon_dioxide
Views: 851 Denis Čuček
Once in the physics lab... Critical point of a gas
 
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have you ever wondered what happens when you compress a gas at high pressure? :) yes, I'm studying too much physics :)
Views: 383 Betelgeuse
What Is Meant By The Triple Point And The Critical Point?
 
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Beyond the temperature of the critical point, the merged single phase is known as a supercritical fluid. Triple Point occurs when both the temperature and pressure of the three phases of the substance coexist in equilibrium. The diagram is divided into three it therefore called the triple point of substance, and represents only in phase which all states are equilibrium. Triple point temperature and pressure condition at which a substance can exist all 3 state (i. What is the difference between critical temperature and boiling point? Triple point a point(particular pressure) where solid liquid gaseous phase of triple wikidifferences difference_between_critical_point_and_triple_point class "" url? Q webcache. See more we'll discuss these when they become relevant. Triple point of a substance is the temperature and pressure at which three phases (gas, liquid, solid) that coexist in thermodynamic equilibrium thermodynamics, triple. Four phase lines cannot meet at a single point. There is difference between them, the triple point or called the single phase represent state in which solid,liquid and vapor exist together, when critical refers to phases(solid&liquid liquid&gas ) such as (ice&saturated water saturated water&dry steam equilibrium 6 jun 2016 are also two important points on diagram. Triple point and critical point? Updated what is difference between triple quora similar temperature pressure condition at which a substance can exist all 3 state (i. A 'critical point' occurs at the end of a 1 sep 2009 Triple point and critical point? Updated what is difference between triple wikidifferencesphase diagrams point, phase equilibrium. What's the triple point is where all three phases meet; The critical temperature and pressure above which liquid cannot exist 22 apr 20157 nov 2017 under singular conditions of water, gaseous water hexagonal ice stably coexist, there a 'triple point' both boiling melting are equal. We call these the triple point pressure and temperature. This is known as the critical point what meant by 'equilibrium vapor pressure' of a liquid? Boiling and pressure have direct relationship higher atmospheric pressure, boiling. Also, learn what a triple point and critical are how to locate them on phase diagram 11 sep 2016 at the of substance, only gaseous liquid phases can exist in equilibrium. Note this is one of the cases where we distort these diagrams to make them easier discussyou will have noticed that liquid vapour equilibrium curve has a top limit i labelled as c in phase diagram. Definitions what do the triple point and critical on a phase researchgatesolved is difference between t does diagram represent? Engineers edge. The liquid gas line ac starts at the triple point a (in which solid, liquid, and coexist) ends critical c. This is called the triple point, defined as state in which all three phases may be present equilibrium. The triple point represents the combination of pressure and temperature that facilitates all phase
Views: 82 Dorian Pyne Tipz
IHI Super Critical Boiler
 
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Modern thermal power plants operate at very high pressures greater than the Critical pressure of steam. This article explains the concept of Supercritical power plants
Views: 1468 AP NAM
Critical Point Experiment | Glass Science
 
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Water at 1500f = What happens? To and beyond critical point. Glassblowing and Lamp working, a lens into the art and functionality of glass through science and experimentation. A journey for the mind and tranquility for the soul. Subscribe - https://www.youtube.com/user/dlock5050?sub_confirmation=1 ~Suggested Videos~ Making a Glass Cannon: https://youtu.be/N1ufwJp3WCg Glass Chain: https://youtu.be/RbVpL0VdADI Water Distillery: https://youtu.be/6Ru94mXGOMw ep. 12 Warning: For Safety this Project or Experiment should Not be recreated.
Views: 2220 Matt Jasa
Intro PVT surface
 
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Introduction to the pressure volume temperature PVT diagram vapor single phase region 2:09 liquid and solid single phase regions 2:32 liquid and vapor two phase region 2:52 liquid and solid two phase region 4:25 solid and vapor two phase region 6:00 triple line 6:26 truncated surface of plot 6:53 projection to get PT diagram 8:42 projection to get PV diagram 9:36
Views: 19089 Randall Manteufel
EP5 - Critical Pressure
 
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A series of videos created by David Ware dealing with the importance of permanent monitoring solutions for liquid gaseous fire suppression systems. For further information visit; http://www.coltraco.com/ http://www.frconline.co.uk/
Views: 589 ColtracoVideos
Saturation Temperature & Saturation Pressure
 
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Saturation Temperature & Saturation Pressure Watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Er. Himanshu Vasishta, Tutorials Point India Private Limited
P v diagram of water
 
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Description
Views: 1319 FL X
Phase diagrams. II. Triple point and critical point
 
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This video describes the characteristic triple and supercritical points in a phase diagram
Views: 1169 Diego Troya
Saturated Mixtures: Saturated Liquid and Vapors // Thermodynamics - Class 45
 
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The Saturation point in a Liquid-Vapor Mixture Check out the Thermodynamic Course Playlist here: http://goo.gl/JwCi0F -º--º--º--º--º--º--º--º--º--º--º--º--º--º--º--º--º-- LIKE the video, it helps me to know what you like SHARE the video with your friends! SUBSCRIBE to my channel so you get my new uploads! Contact: [email protected] Facebook: www.facebook.com/chemical.engineering.guy Twitter: www.twitter.com/ChemEngGuy Get More Courses and Study Material HERE: www.ChemicalEngineeringGuy.com
Heating Curve and Cooling Curve of Water - Enthalpy of Fusion & Vaporization
 
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This chemistry video tutorial provides a basic introduction into the heating curve of water and the cooling curve of water. As heat is added to water, the temperature increases which increases the kinetic energy of the molecules. At the freezing point of ice, adding heat will not change the temperature but will increase the potential energy of the molecules as ice melts to liquid water. The enthalpy of fusion is the energy required to melt 1 mole of ice. The enthalpy of vaporization is the energy required to boil 1 mole of water into steam. The slope of the lines is inversely related to the specific heat capacity of the substance. The heating curve represents an endothermic process and the cooling curve is an exothermic process. New Chemistry Video Playlist: https://www.youtube.com/watch?v=bka20Q9TN6M&t=25s&list=PL0o_zxa4K1BWziAvOKdqsMFSB_MyyLAqS&index=1 Access to Premium Videos: https://www.patreon.com/MathScienceTutor Facebook: https://www.facebook.com/MathScienceTutoring/
Circumnavigating the Critical Point
 
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http://demonstrations.wolfram.com/CircumnavigatingTheCriticalPoint The Wolfram Demonstrations Project contains thousands of free interactive visualizations, with new entries added daily. The pressure-temperature phase diagram for water is used to illustrate the concept of state functions and the possibility of going from the liquid phase to the vapor phase (or the other way) without a phase change (a single phase throughout the process)... Contributed by: Rachael L. Baumann and John L. Falconer Audio created with WolframTones: http://tones.wolfram.com
Views: 59 wolframmathematica
Vapor Pressure and Boiling
 
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The molecules leaving a liquid through evaporation create an upward pressure as they collide with air molecules. This upward push is called the vapor pressure. Different substances have different vapor pressures and therefore different boiling points. This is due to differing intermolecular forces between molecules. The vapor pressure of a liquid lowers the amount of pressure exerted on the liquid by the atmosphere. As a result, liquids with high vapor pressures have lower boiling points. Vapor pressure can be increased by heating a liquid and causing more molecules to enter the atmosphere. At the point where the vapor pressure is equal to the atmospheric pressure boiling will begin. In effect, without any external pressure the liquid molecules will be able to spread out and change from a liquid to a gaseous phase. The gas, as bubbles in the liquid, will rise to the surface and be released into the atmosphere. See: http://chemwiki.ucdavis.edu/Core/Physical_Chemistry/Physical_Properties_of_Matter/States_of_Matter/Phase_Transitions/Boiling
Views: 114045 Wayne Breslyn
Why Steam Burns more than water #2018SCCH110 #2018SCCH100 #mu6018032
 
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The energy used to break hydrogen bonds of liquid water to reach the critical point of the steam. Is the main reason why steam burns more worse than water.
Views: 93 Godfrey Asiimwe
Lec-6 Property of Pure Substance, Steam Table
 
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Lecture Series on Applied Thermodynamics for Marine Systems by Prof.P.K. Das, Department of Mechanical Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in
Views: 142113 nptelhrd
Critical point (thermodynamics)
 
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In physical chemistry, thermodynamics, chemistry and condensed matter physics, a critical point, also known as a critical state, occurs under conditions (such as specific values of temperature, pressure or composition) at which no phase boundaries exist. There are multiple types of critical points, including vapor–liquid critical points and liquid–liquid critical points. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 1227 Audiopedia
Temperature Entropy Diagram
 
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Temperature Entropy Diagram Watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Er. Himanshu Vasishta, Tutorials Point India Private Limited
Gas vs Vapour in tamil
 
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Differences between gas and vapour in tamil by learn mechanical 1. Gas Vs Vapour in Tamil 2. Critical Temperature 3. Gas 4. Vapour 5. Vapourisation
Introduction to Steam Tables
 
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Steam tables are used to solve two example problems: 1) density at critical point, 2), quality of liquid-vapor mixture. Made by faculty at the University of Colorado Boulder Department of Chemical and Biological Engineering. Check out our Thermodynamics playlists: https://www.youtube.com/user/LearnChemE/playlists?shelf_id=11&view=50&sort=dd Check out our Material & Energy Balances playlists: https://www.youtube.com/user/LearnChemE/playlists?view=50&flow=list&shelf_id=8 Check out our website for screencasts organized by popular textbooks: http://www.learncheme.com/screencasts Check out our website for interactive simulations: http://www.learncheme.com/simulations
Views: 7906 LearnChemE
Difference between Vapor and a Gas // Thermodynamics - Class 49
 
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The important difference of a Vapor and a Gas... Essentially, when compressed (increase in pressure) the vapor will CONDENSE the gas will convert in a critical fluid! Check out the Thermodynamic Course Playlist here: http://goo.gl/JwCi0F -º--º--º--º--º--º--º--º--º--º--º--º--º--º--º--º--º-- LIKE the video, it helps me to know what you like SHARE the video with your friends! SUBSCRIBE to my channel so you get my new uploads! Contact: [email protected] Facebook: www.facebook.com/chemical.engineering.guy Twitter: www.twitter.com/ChemEngGuy Get More Courses and Study Material HERE: www.ChemicalEngineeringGuy.com
Pressure - Temperature Phase Diagram // Thermodynamics - Class 46
 
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Pressure-Temperature Phase Diagram. In this diagram we see the three lines of equilibrium, the triple point and the critical point very easily! Check out the Thermodynamic Course Playlist here: http://goo.gl/JwCi0F -º--º--º--º--º--º--º--º--º--º--º--º--º--º--º--º--º-- LIKE the video, it helps me to know what you like SHARE the video with your friends! SUBSCRIBE to my channel so you get my new uploads! Contact: [email protected] Facebook: www.facebook.com/chemical.engineering.guy Twitter: www.twitter.com/ChemEngGuy Get More Courses and Study Material HERE: www.ChemicalEngineeringGuy.com
Interpretation of Steam Tables | Thermodynamics (THRM101)
 
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http://goo.gl/I5U2jB for more free video tutorials covering Thermodynamics. This video shows how to do interpretation of water steam tables to obtain required data with reference to the pure substance P-V diagram and observes various thermodynamics properties of the compressed liquid region, the two phase region and the superheated region. Steam table is an indispensable tool for thermodynamics study and is typically used to determine saturated steam pressure from steam temperature or vice versa. In addition to pressure and temperature, this table also includes other related value such as enthalpy and specific volume. The data found on a steam table always refer to the state of water at a particular point where it can exist as either in liquid or steam phase as well as can also coexist having both the phases. Moving on, the video shows how to interpret steam table and obtain necessary data following the step by step illustration on problems with reference to the P-V diagram.
Views: 29692 Spoon Feed Me
Vapor pressure | States of matter and intermolecular forces | Chemistry | Khan Academy
 
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Vapor pressure, volatility, and evaporation. Watch the next lesson: https://www.khanacademy.org/science/chemistry/states-of-matter-and-intermolecular-forces/states-of-matter/v/phase-diagrams?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry Missed the previous lesson? https://www.khanacademy.org/science/chemistry/states-of-matter-and-intermolecular-forces/states-of-matter/v/change-of-state-example?utm_source=YT&utm_medium=Desc&utm_campaign=chemistry Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity. This material roughly covers a first-year high school or college course, and a good understanding of algebra is helpful. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Chemistry channel: https://www.youtube.com/channel/UCyEot66LrwWFEMONvrIBh3A?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
Views: 464960 Khan Academy
How is Liquid Transform into Steam?
 
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#EngineeringHub #steam The steam is a gaseous form of liquid. When any liquid is heated at a constant temperature, it starts changing in vapor condition. A vapor is a mixture of gas and liquid particles in suspension and it can be liquefied by moderate changes in pressure or temperature. The process of vapor formation from the liquid state has some definite characteristics to follow; you will get details in thermal engineering. Characteristics of the Steam formation 01) The heat supplied during the process of vaporization changes its state gradually from liquid to gaseous state. 02) The vapor is said to be dry saturated when the process of vaporization takes place at constant pressure and temperature. In another word, we can say when the liquid is completely evaporated it is called dry saturated. 03) The vapor is called superheated when the heat is added to the dry saturated vapor state. At superheated state, the temperature will rise gradually. 04) During the process of superheating a vapor at constant pressure, the volume will increase approximately in proportion to the absolute temperature, which indicates that the vapor is approaching the state of the perfect gas. 05) The temperature at which the evaporation process is taking place is increased when the pressure on the liquid surface is increased. 06) The latent heat of vaporization decrease with the increase of pressure and temperature but the sensible enthalpy increases under this condition. 07) The total heat (Enthalpy) of dry saturated vapor increases with increase in saturation temperature. In lower range of pressure and temperature, the rate of increase in sensible enthalpy is greater than the rate of decrease in latent enthalpy with the increase in pressure. After certain saturation temperature, the rate of increase in sensible enthalpy is less than the rate of decrease in latent enthalpy and hence, the enthalpy of dry saturated vapor decreases. This will continue to happen until the saturation temperature is reached when the latent enthalpy becomes zero and the enthalpy of dry saturated vapor becomes equal to the sensible heat. This saturation temperature is called as critical temperature and the corresponding pressure is called critical pressure and the state of a substance is called its critical state. 08) Steam cannot exist as a saturated vapor above its critical temperature. At any temperature higher than the critical temperature (374.14-degree centigrade) the vapor can only exist as a gas without any effect of pressure. At the critical temperature, the specific volume of dry saturated vapor becomes equal to the specific volume of the liquid from which it is being formed. Visit, https://goo.gl/b4JceR Also, like us on https://www.facebook.com/BestEngineeringHub
Views: 24 Engineering Hub
Properties of pure substances-III | Basic Thermodynamics | Dryness fraction of steam
 
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Dryness fraction of steam Quality of steam Physical significance of dryness fraction Critical point Critical parameters of water
PROPERTIES OF STEAM/PURE SUBSTANCE (Hindi+English)
 
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This video contains basic introduction of properties of Steam/Pure substance.After watching this video you will be able to understand latent heat of Fusion, latent heat of vaporisation, sensible heat ,saturation temperature and phase diagrams of steam generation.
Views: 28741 Easy Explanations
Reduced Temperature and Pressure // Thermodynamics - Class 50
 
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Reduced Temperature = Actual temperature of the gas divided by the critical temperature Reduced Pressure = Actual pressure of the gas divided by the critical pressure we will be using this for later exercises... Check out the Thermodynamic Course Playlist here: http://goo.gl/JwCi0F -º--º--º--º--º--º--º--º--º--º--º--º--º--º--º--º--º-- LIKE the video, it helps me to know what you like SHARE the video with your friends! SUBSCRIBE to my channel so you get my new uploads! Contact: [email protected]icalEngineeringGuy Facebook: www.facebook.com/chemical.engineering.guy Twitter: www.twitter.com/ChemEngGuy Get More Courses and Study Material HERE: www.ChemicalEngineeringGuy.com
Supercritical fluids
 
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Is it a liquid? Is it a gas? Professor Martyn Poliakoff demonstrates supercritical fluids in his office at the University of Nottingham. More with Professor Poliakoff at http://www.test-tube.org.uk/
Views: 358543 nottinghamscience
Lecture 3: Properties of pure substances(contd.) By Prof S K Som and S chakraborty I IIT Kharagpur
 
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Topics covered: 1. Liquid-vapor phase change of water 2. p-v and T-v diagrams 3. Critical point 4. Quality or dryness fraction 5. Steam table 6. Example problem 7. Law of corresponding states
What is Supercritical fluid,amazing الحالة الرابعة للمادة ما بين السائلة و الغازية ,مذهلة
 
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The 4th state of matter is called super-critical fluid , the liquid and gas phases merge together into a new phase that has properties of a gas, but the density of a liquid,its a good solvent that ,there is many good uses for it right now and yet a lot more to discover ,some thing like cleaning clothes and other situations where avoiding liquid is necessary . هذه هي الحالة الرابعة للمادة , الحالات المعروفة هي الصلبة و السائلة و الغازية ,اما في هذه الحالة تتحد فيها المادة بحالتها الغازية و السائلة مكونة حالة وسط ما بين السائلة و الغازية , لها خصائص السائل لكن شكلها غازي , و لها عدة استخدامات في الوقت الحالي و سيكتشف مستقبلا العديد من الاستخدامات الاخرى المفيدة , مثلا تستخدم في تفكيك بعض المواد او تنظيف الانسجة و الملابس او تستخدم في الحلات التي لا يمكن فيها استخدام السوائل.
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