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Undergrad Carnot Refrigerator Work Input: 230 J Extracts 346 J Heat

  • Mohammed Alqadhi
  • · Replies 10 ·
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10

Undergrad Does Decreasing Volume and Internal Energy of a Gas Affect Heat Flow and Constant Pressure?

  • Mohammed Alqadhi
  • · Replies 7 ·
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7

Undergrad Energy Conversion With Supercritical Fluids

  • Benign Paradigm
  • · Replies 5 ·
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5

Undergrad Frame of reference in which Newton's first law is not valid

  • parshyaa
  • · Replies 7 ·
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7

Undergrad How do you find Z when the temperature line ends on the compressibility chart?

  • zachdr1
  • · Replies 7 ·
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7

Undergrad What is the gas composition in a tank with a SF6 leak?

  • Graaf van Vlaanderen
  • · Replies 4 ·
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4

Undergrad Why isn't the temperature of this vapor T_sat?

  • zachdr1
  • · Replies 16 ·
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16

High School Hydraulic Engine: Ball Spin, Stop & Why?

  • adska
  • · Replies 4 ·
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4

Graduate Is a mazer essentially a transistor for radiation?

  • Mathamans
  • · Replies 2 ·
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2

Undergrad Why can we assume the temperature of a fluid is T_sat?

  • zachdr1
  • · Replies 3 ·
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3

Graduate 1st law, 2nd law, entropy by Gyftopoulos / Beretta is confusing

  • Sebi123
  • · Replies 7 ·
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7

High School Why Does a Ball Bounce Back from a Wall But Not from Sand?

  • Awais gul
  • · Replies 3 ·
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3

Graduate Non-Linear optics vs The 2nd Law of Thermodynamics

  • hmmm27
  • · Replies 46 ·
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46

Graduate See gases with consumer IR camera

  • BeHappyFTW
  • · Replies 3 ·
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3

Undergrad Calculate the energy in a sauna hot stone

  • lkgilbert
  • · Replies 5 ·
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5

Graduate Exceptions to the Laws of Physics: Newton's Third Law

  • Akshat
  • · Replies 10 ·
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10

High School Difference between W=-(ΔU) and negative U.

  • donaldparida
  • · Replies 18 ·
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18

Graduate Enthelpy Transformation: P=Constant, ΔH=Q?

  • Elio Gruttadauria
  • · Replies 1 ·
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1

Undergrad Can the internal energy of the surroundings change in an irreversible cycle?

  • blackdranzer
  • · Replies 3 ·
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3

Undergrad Difference between using temperature in Celsius and Kelvin

  • PhysStudent112358
  • · Replies 11 ·
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11

Graduate Thermodynamics of an Arctic greenhouse?

  • Jefffff
  • · Replies 3 ·
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3

Graduate Kirchhoff law for absorption and emission of a gas

  • Carlos de Meo
  • · Replies 2 ·
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2

Graduate Thermodynamics : https://www.youtube.com/watch?v=uc9P5yb3Xtc

  • TheAnt
  • · Replies 1 ·
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1

Graduate Deriving the thermodynamic beta from Lagrange Multipliers

  • McLaren Rulez
  • · Replies 1 ·
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1

Graduate Temperature variation within thermocouple in Seebeck mode

  • elt93
  • · Replies 1 ·
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1

Undergrad Are There Always Conditions for Writing Q=CΔT in Heat Transfer Processes?

  • FG_313
  • · Replies 2 ·
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2

Undergrad IR heat reflectivity and engines

  • Brian Teal
  • · Replies 8 ·
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8

Graduate Functionality of draft Tube in Turbine

  • Mikealvarado100
  • · Replies 11 ·
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11

Graduate Refuting the idea of entropy equalling "disorder"

  • sshai45
  • · Replies 3 ·
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3

Undergrad What temperature do thermocouples show? Static or Total?

  • Omish
  • · Replies 5 ·
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5

Graduate Black bodies, perfect reflection and heat transfer

  • Carlos de Meo
  • · Replies 8 ·
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8

Graduate Temperature of a radioactive material

  • Methavix
  • · Replies 25 ·
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25

Graduate Reflexion and transmission in case of heating

  • jk22
  • · Replies 4 ·
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4

Undergrad Pressurization rate vs. Mass Flow rate

  • Kerky
  • · Replies 3 ·
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3

Undergrad Is there some sort of heat conductive wave?

  • Heros_iragorri
  • · Replies 2 ·
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2

Graduate Einstein's theory for specific heat

  • Titan97
  • · Replies 1 ·
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1

Undergrad Help understanding internal energy

  • nashed
  • · Replies 6 ·
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6

Undergrad Can I Calculate Temperature Release from Energy Change in a Body?

  • cptolemy
  • · Replies 5 ·
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5

Undergrad What is the significance of thermal expansion coefficients in material research?

  • dstahn
  • · Replies 9 ·
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9

High School Time & Temperature: Proportional or Inverse?

  • shina
  • · Replies 9 ·
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9

Undergrad Heat is infrared radiation....

  • fog37
  • · Replies 16 ·
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16

Undergrad Radiation of Body: Is It True?

  • Karan Punjabi
  • · Replies 3 ·
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3

Undergrad Why the temperature remains constant at the boiling point?

  • Tahmeed
  • · Replies 4 ·
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4

Undergrad Fin area and heat transfer direction

  • Axe199
  • · Replies 6 ·
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6

Undergrad Measuring vacuum w/ hot filament - calculation (pirani gauge)

  • Plat
  • · Replies 25 ·
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25

High School What Causes the Heat in Your Vehicle's CD Player?

  • houlahound
  • · Replies 10 ·
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10

Undergrad Understanding Ideal Gas Equation in Arbitrarily Shaped Containers

  • person_random_normal
  • · Replies 3 ·
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3

Undergrad Fire & Combustion: Questions Answered

  • Igor_
  • · Replies 1 ·
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1

Undergrad Is there a boiling analog to sublimation?

  • Electric to be
  • · Replies 1 ·
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1

Graduate Thermodynamic cost of information processing (or lack thereof)

  • Nantes
  • · Replies 17 ·
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17

Graduate How to calculate blackbody temperature from radiance band?

  • eng3
  • · Replies 2 ·
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2

High School Is Radiation Defined as Mass Transfer or Heat Transfer?

  • Arceus74
  • · Replies 1 ·
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1

Graduate How do we measure gibbs free energy for irreversible processes?

  • hongiddong
  • · Replies 7 ·
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7

Undergrad How Hot Does a Human Body Burn?

  • Nanako
  • · Replies 5 ·
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5

Graduate Resolution to Gibbs' entropy paradox?

  • maline
  • · Replies 9 ·
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9

Undergrad Does ice really melts if in conctact with reservoir at 0°C?

  • Soren4
  • · Replies 2 ·
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2

Graduate Efficiency of engine when non-boundary work done is done?

  • Soren4
  • · Replies 1 ·
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1

Graduate Bosons at very high temperature

  • Magnetic Boy
  • · Replies 5 ·
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5

Graduate Big debate: following process is reversible or not

  • mukul
  • · Replies 7 ·
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7

High School Black vs Shiny Metal for a Storage Container Outdoors

  • Hoping for Answers
  • · Replies 12 ·
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12

Graduate Internal energy in irr. process with molar heat not constant

  • Soren4
  • · Replies 2 ·
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2

Graduate Calculating Entropy of Systems

  • rwooduk
  • · Replies 8 ·
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8

Undergrad What are state functions in chemical thermodynamics?

  • Karan Punjabi
  • · Replies 3 ·
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3

High School Understanding Supercritical Fluids: Properties, Risks, & Applications

  • RobA
  • · Replies 2 ·
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2

Graduate Heat transaction of a non-ideal gas

  • Uthpala Kaushalya
  • · Replies 6 ·
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6

Undergrad Heat Transfer Q&A: Sun, Metal Heat Sinks, & Conductivity

  • RobA
  • · Replies 2 ·
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2

Graduate On the possibility of making an engine with efficiency 1

  • Joyal Babu
  • · Replies 3 ·
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3

Undergrad How is thermal energy stored in different types of materials?

  • alba
  • · Replies 6 ·
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6

Undergrad Siphoning through a straight tube

  • the ads 13
  • · Replies 2 ·
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2

Undergrad Will two lasers deliver exactly double the heating?

  • Bullington
  • · Replies 14 ·
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14

Graduate What is the mechanism of heat transfer and air flow in coffee roasters?

  • Chemchampa
  • · Replies 1 ·
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1

Undergrad Calculation confirmation needed -- energy stored in heated water

  • Rustie0125
  • · Replies 16 ·
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16

Undergrad Newton's 2nd Law: Force, Mass, & Acceleration

  • Alan3030
  • · Replies 2 ·
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2

Undergrad AC Alternator Load Loss on Engine Performance

  • Brian James
  • · Replies 3 ·
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3

High School Is this just the first thermodynamic Law?

  • AyoubEd
  • · Replies 4 ·
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4

High School Why is Rankine Measured in Degrees?

  • gfd43tg
  • · Replies 5 ·
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5

High School How Are Joules and Newton's Energy Transfer Related?

  • ReptileBaird
  • · Replies 15 ·
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15

Undergrad Understanding HVAC Superheat: Common Issues with Calculating Target Levels

  • jelanier
  • · Replies 4 ·
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4

Undergrad Thermal Radiation of a steel ball

  • Samujawal
  • · Replies 2 ·
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2

Undergrad What sort of energy can be stored?

  • Saippo
  • · Replies 1 ·
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1

High School Deriving pV=NkT from N=Na*n and k=R/Na

  • Hannah7h
  • · Replies 7 ·
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7

Graduate Is a binary distillation column limited by Carnot?

  • ejnovek
  • · Replies 1 ·
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1

Graduate Entropy change of environment during an irreversible process

  • crick
  • · Replies 1 ·
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1

Graduate Radiant heating of air trapped in hollow glass spheres....

  • shane2
  • · Replies 12 ·
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12

Graduate Stereo and home theater physics problem for fun

  • MetropolisLake
  • · Replies 1 ·
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1

High School How to distinguish order and disorder?

  • mitrasoumya
  • · Replies 3 ·
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3

Undergrad Relation between 'P' and 'V' for an Adiabatic process

  • Dr. Who
  • · Replies 1 ·
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1

High School Why isn't rubber a better thermal insulator than styrofoam?

  • OmegaKV
  • · Replies 3 ·
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3

Undergrad Pool Siphon: Can Circular Loop Work?

  • anthonybommarito1
  • · Replies 2 ·
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2

Undergrad What is the difference between entropy reversibility and irreversibility?

  • Saippo
  • · Replies 1 ·
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1

Undergrad The energy lost when mixing two boxes of gas

  • mousheng xu
  • · Replies 9 ·
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9

Graduate Another "Partial Derivatives in Thermodynamics" Question

  • conservedcharge
  • · Replies 3 ·
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3

Undergrad How to measure the temperature of liquid in sealed container

  • Pyotr
  • · Replies 3 ·
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3

Undergrad Difference between Isothermal and Adiabatic?

  • Saippo
  • · Replies 3 ·
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3

Undergrad Understanding a practical cooling situation

  • spikey1973
  • · Replies 2 ·
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2

Undergrad Help with Experiment on Batteries

  • abhipatil419
  • · Replies 7 ·
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7

Graduate Entropy: second law for systems with zero input net energy

  • haushofer
  • · Replies 5 ·
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5

Graduate Fermi Function at High Temperature

  • Parmenides
  • · Replies 1 ·
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1

Graduate Negative Kelvin temperature? (Recent Science paper)

  • xnwkac
  • · Replies 45 ·
2
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45

High School Diffusion: Noteworthy Papers Explaining Why/2nd Law of Thermo

  • Einstein's Cat
  • · Replies 1 ·
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1