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Undergrad Derivation of the Onsager symmetry

  • Efil_Kei
  • · Replies 1 ·
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Undergrad Gases: Not Required to Be Blackbodies

  • snorkack
  • · Replies 19 ·
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19

Undergrad Does a waterfall have a higher temperature at the bottom ?

  • DLeuPel
  • · Replies 3 ·
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3

Graduate How Does Temperature Affect Particle Density and Expansion in the Universe?

  • Arman777
  • · Replies 4 ·
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4

Graduate Exploring Thermodynamic Work: PV, Mechanical, and Non-Mechanical

  • Nick9
  • · Replies 2 ·
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2

Graduate Machine in Clausius' 2nd law of thermodynamics?

  • FranzDiCoccio
  • · Replies 7 ·
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7

Undergrad Application of the ideal gas law

  • doktorglas
  • · Replies 2 ·
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2

Graduate Why is light emitted from an object when it is heated?

  • bwana
  • · Replies 25 ·
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25

Graduate Heat diffusion into an infinite rod

  • kairama15
  • · Replies 5 ·
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5

Graduate Question about entropy change in a reservoir

  • Clara Chung
  • · Replies 2 ·
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2

Undergrad What exactly is the thermal lens effect?

  • Pericle
  • · Replies 2 ·
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2

High School How does sweating cool a person down?

  • fourthindiana
  • · Replies 9 ·
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9

Graduate Does a good heat engine make a bad refrigerator?

  • FranzDiCoccio
  • · Replies 6 ·
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6

Graduate Silicon not heating with induction heater?

  • Patrick Underwood
  • · Replies 3 ·
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3

Undergrad Free expansion of an ideal gas

  • Apashanka
  • · Replies 10 ·
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10

Undergrad Temperature of a thin bulb filament

  • Baibhab Bose
  • · Replies 5 ·
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5

Graduate Confused about Hawking Radiation

  • PhDnotForMe
  • · Replies 7 ·
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7

Undergrad I do not understand Equations of state

  • Another
  • · Replies 2 ·
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2

Undergrad Non-aquaeous expansion medium for a reactor

  • christian everett
  • · Replies 10 ·
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10

Undergrad Atmospheric Lapse Rate (calculating the altitude of cloud formation)

  • Borborygmus
  • · Replies 2 ·
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2

Undergrad Is Temperature Truly Absolute Zero in a Vacuum with No Particles?

  • DLeuPel
  • · Replies 44 ·
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44

Graduate Why Is Understanding Entropy So Challenging?

  • Clara Chung
  • · Replies 19 ·
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19

Graduate Latent Heat: An Alternative Explanation

  • klimatos
  • · Replies 4 ·
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4

Graduate What is the Specific Heat of an Ideal Blackbody?

  • fog37
  • · Replies 11 ·
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11

High School Could steam be expanded through a nozzle to get 0°C gas?

  • Christofer Br
  • · Replies 1 ·
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1

High School How can I model a density function of a compressible fluid?

  • Se Adolf
  • · Replies 2 ·
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2

Undergrad Why laser output power decreases with increasing temperature

  • DariusP
  • · Replies 1 ·
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1

Grandpa Chet's Entropy Recipe - Comments

  • Chestermiller
  • · Replies 9 ·
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9

Undergrad Heat during the Day: Answers to Your Questions

  • Lukeblackhill
  • · Replies 5 ·
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5

High School What is the name of this Heat Engine?

  • gary350
  • · Replies 8 ·
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8

Undergrad Solar radiation for the stabilization of satellites?

  • Fernando Silva
  • · Replies 2 ·
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2

Graduate Free expansion of a real gas vs Joule-Thomson effect

  • pacgcrosss
  • · Replies 3 ·
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3

Undergrad Optimizing Venturi Effect in Hyperboloid Tower Construction

  • Kai G
  • · Replies 3 ·
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3

Graduate Do Carnot and Stirling Engines Have the Same Efficiency?

  • FranzDiCoccio
  • · Replies 8 ·
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8

Graduate How is the 2nd law of thermodynamics obeyed in this system?

  • Christofer Br
  • · Replies 1 ·
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1

Graduate What is the Intuitive Meaning of Entropy and How is it Calculated?

  • PainterGuy
  • · Replies 17 ·
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17

Graduate Probability at a temperature T that a system has a particular energy

  • Hector Triana
  • · Replies 1 ·
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1

Undergrad UV radiation vs. the real daytime exposure

  • Garunekk
  • · Replies 1 ·
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1

Graduate Why is there a temperature gradient in lasers causing thermal lensing?

  • DariusP
  • · Replies 4 ·
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4

Undergrad On Newton's first and second laws

  • kiuhnm
  • · Replies 20 ·
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20

Undergrad Heating water and air in a constant volume

  • liquidFuzz
  • · Replies 19 ·
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19

Graduate Impact of chaos on a system's entropy

  • L_landau
  • · Replies 1 ·
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1

Graduate How can we best describe entropy other than with disorder?

  • Grajmanu
  • · Replies 6 ·
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6

High School Temperature Measurement: Are All Thermometers Created Equal?

  • barzani
  • · Replies 14 ·
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14

Undergrad Kepler's second law and Wikipedia article

  • PainterGuy
  • · Replies 8 ·
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8

Graduate Why doesn't Q=0 instead of Q=W if T=constant in first law?

  • Henrybar
  • · Replies 11 ·
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11

Undergrad Storing Energy as Heat in Vegetable Oil

  • TheSlovakEngineer
  • · Replies 29 ·
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29

Undergrad Specific heat at constt. volume of an ideal gas

  • Apashanka
  • · Replies 1 ·
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1

High School Is Newton's Second Law Flawed? An Exploration of Zero Force in Space

  • Roddy Hatch
  • · Replies 14 ·
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14

Graduate Hawking radiation versus the cosmic background

  • Swamp Thing
  • · Replies 13 ·
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13

Graduate Entropy generation during irreversible isothermal expansion

  • dRic2
  • · Replies 21 ·
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21

High School Question about Newton's Second and Third Laws

  • Eleni_
  • · Replies 26 ·
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26

Undergrad How is thermochromatic rainbow paint made?

  • sauroman1
  • · Replies 7 ·
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7

Undergrad Description of Adiabatic Expansion

  • I_laff
  • · Replies 8 ·
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8

Graduate What will happen to the heat input of the two-phase system?

  • nesca
  • · Replies 3 ·
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3

High School Free Expansion of Gas: Internal Energy & Work

  • Apashanka
  • · Replies 3 ·
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3

Graduate Explain the demonstration of Kirchhoff's law on blackbody

  • kevinaltieri
  • · Replies 1 ·
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Graduate Variation of energy but constant entropy

  • SHCampos
  • · Replies 1 ·
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1

Undergrad Heat Buildup in Complete Insulation Box

  • kiki_danc
  • · Replies 35 ·
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35

Undergrad How does solar radiation contribute to heat transfer through windows?

  • yohanblake
  • · Replies 2 ·
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2

Graduate Trying to understand the entropy of different situations....

  • Mark Springer
  • · Replies 1 ·
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1

High School What would happen to Earth's temperatures without an atmosphere?

  • Darkmisc
  • · Replies 6 ·
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6

Graduate Volume and temperature rise in tissue

  • roam
  • · Replies 35 ·
2
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35

Graduate Thermodynamics Pathria Eq.4.5.9

  • IcedCoffee
  • · Replies 2 ·
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2

Undergrad Need help reconciling two statements about refrigerants

  • fourthindiana
  • · Replies 3 ·
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3

High School Why does time pass in an isolated vacuum?

  • Alec Hewitt
  • · Replies 8 ·
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8

Undergrad Superheated vapors and Gay-Lussac's Gas Law

  • fourthindiana
  • · Replies 7 ·
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7

Undergrad What is the difference between a perfect gas and an ideal gas?

  • Death eater
  • · Replies 18 ·
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18

Graduate Some questions about heat and temperature

  • SchroedingersLion
  • · Replies 7 ·
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7

Graduate Is this calculation for radiation pressure correct?

  • hewhorizons
  • · Replies 5 ·
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5

Undergrad Why the specific heat of solids and liquid does not change?

  • Death eater
  • · Replies 1 ·
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1

Undergrad Calculating Laser Power from Temperature Rise, Time, and Target Mass?

  • TSJim
  • · Replies 4 ·
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4

Undergrad Radiance and energy density of a black body

  • Airton Rampim
  • · Replies 4 ·
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4

Undergrad Heat Transfer -- Newton's law of cooling

  • Fritiofmikael
  • · Replies 8 ·
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8

Undergrad Dimensional analysis involving partial derivatives

  • Wledig
  • · Replies 2 ·
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2

Graduate Entropy Change in Free Expansion: Why △S=ncᵥln(T_f/T_i)+nRln(V_f/V_i)?

  • spideyjj
  • · Replies 4 ·
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4

Graduate Understanding Constant Temperature in Ideal Gas Filling Process

  • thinkingcap81
  • · Replies 1 ·
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1

Undergrad Compression of gases that liquefies

  • sgstudent
  • · Replies 32 ·
2
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32

Undergrad What Causes Thunder? New Research Answers

  • gary350
  • · Replies 22 ·
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22

Undergrad Density of states in the ideal gas

  • rabbed
  • · Replies 2 ·
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2

Undergrad Do Simple 2D Ising Models Have Constant Density of States?

  • rabbed
  • · Replies 5 ·
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5

Undergrad Statistical Physics - Equilibrium

  • SchroedingersLion
  • · Replies 5 ·
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5

Graduate Entropy Production in an Optical Cavity?

  • Twigg
  • · Replies 5 ·
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5

Graduate THz Radiation, Antennas: Need background knowledge

  • pretysmitty
  • · Replies 12 ·
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12

Graduate When/How does thermal radiation stop (if it stops) and conduction

  • katelr
  • · Replies 13 ·
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13

Undergrad Cooling of a hot body in the vacuum of space

  • Thecla
  • · Replies 8 ·
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8

Undergrad Reversible compression of a gas - faulty reasoning?

  • kibestar
  • · Replies 2 ·
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2

Undergrad Rocket-Jet Hybrid, Rocket + Ramjet

  • Julian Erickson
  • · Replies 4 ·
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4

Graduate Pressure and temperature due to frictional or momentum input

  • thinkingcap81
  • · Replies 12 ·
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12

Undergrad Carnot Cycle efficiency, temperature dependency

  • thinkingcap81
  • · Replies 7 ·
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7

Undergrad Seebeck generator from placing water heater next to freezer

  • DWT
  • · Replies 7 ·
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7

Graduate Entropy in the Brazil Nut Sorting Effect

  • Tahmeed
  • · Replies 4 ·
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4

Undergrad The air parcel expands as it rises inside a pipe

  • Aleksej
  • · Replies 20 ·
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20

Graduate Do Some Organisms Thrive on Pure Heat Instead of Low Entropy?

  • kiki_danc
  • · Replies 10 ·
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10

Undergrad Possible error sources in thermal conductivity experiment?

  • Stephen Lanford
  • · Replies 16 ·
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16

High School Energy required to get 1 kg of lead to a given temp from 0 K

  • Bruce Haawkins
  • · Replies 8 ·
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8

Graduate Question about infrared radiation

  • Ghost Repeater
  • · Replies 8 ·
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8

Undergrad Heat Transferred to a Falling Object

  • Comeback City
  • · Replies 7 ·
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7

Graduate Could we picture the universe without entropy (in it)?

  • entropy1
  • · Replies 3 ·
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3

High School When Difference between Kelvin and Celsius are negligible

  • jldibble
  • · Replies 1 ·
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1