Thermodynamics Forum

Threads

Undergrad Does the New Solar Cell Violate the Second Law of Thermodynamics?

  • Larrymb
  • · Replies 5 ·
Replies
5

Graduate Fate of matter with universal heat death

  • Loren Booda
  • · Replies 4 ·
Replies
4

Graduate Radiation Heat Pump: Is It Possible?

  • philrainey
  • · Replies 8 ·
Replies
8

Undergrad Is Running Your Heat Pump 24/7 More Efficient? Debunking Common Myths

  • daz59
  • · Replies 11 ·
Replies
11

Graduate Quantifying Entropy - an analogy

  • quark1005
  • · Replies 5 ·
Replies
5

Undergrad Equivalent energy stored in compressed gas

  • bitman
  • · Replies 4 ·
Replies
4

Graduate PEM fuel cells, why the membrane?

  • Topher925
  • · Replies 8 ·
Replies
8

Graduate Generating EM Radiation: Natural and Artificial Methods Explained"

  • Rainbow
  • · Replies 5 ·
Replies
5

Undergrad What happens when water is heated above its critical temperature?

  • Kasper_NYC
  • · Replies 3 ·
Replies
3

Undergrad Dew Point Temp: Does it Change with Altitude, Pressure & Density?

  • tuoni
  • · Replies 5 ·
Replies
5

High School Time & Temperature: Any Connection?

  • DLuckyE
  • · Replies 12 ·
Replies
12

Undergrad What is the connection between creativity and entropy

  • eranb2
  • · Replies 1 ·
Replies
1

Graduate Relative intensity changing with temperature?

  • AdrianH
  • · Replies 1 ·
Replies
1

Undergrad Here is the roulette cheat cookbook (Fake?)

  • thecourier
  • · Replies 8 ·
Replies
8

Undergrad The physics behind air/fuel ratios in 4-stroke engines.

  • Holocene
  • · Replies 9 ·
Replies
9

Graduate Slow variables in thermodynamics

  • tun
  • · Replies 1 ·
Replies
1

Undergrad Is Energy Transfer via Electromagnetic Radiation Considered a Heat Process?

  • Me1
  • · Replies 2 ·
Replies
2

Undergrad Energy efficiency and home insulation

  • anniej
  • · Replies 6 ·
Replies
6

Undergrad Formula for mixing liquids of different temperatures?

  • kenewbie
  • · Replies 4 ·
Replies
4

High School Cooling a room with A/C (w or w/o a fan)

  • Minjin
  • · Replies 3 ·
Replies
3

Undergrad What Material Should I Use for a Dry Ice Container in a DIY Portable AC?

  • shadowblade
  • · Replies 1 ·
Replies
1

Undergrad Sweating on Line: High vs Low Pressure

  • cyclone
  • · Replies 1 ·
Replies
1

Graduate Temperature measured from Wien's Displacement law

  • Frank Lampard
  • · Replies 10 ·
Replies
10

Graduate Help to understand fast adiabatic expansion

  • juanedilio
  • · Replies 2 ·
Replies
2

Undergrad Why is air not the best insulation for homes?

  • velociraptor
  • · Replies 6 ·
Replies
6

Undergrad Why does the area of a piston have no effect on its settling height?

  • mklein
  • · Replies 2 ·
Replies
2

Graduate Will Compression Affect Temperature and Resonance Frequencies?

  • EEstudentNAU
  • · Replies 2 ·
Replies
2

Graduate Calling Math & Physics Runners: Take a Look at the SM Model!

  • tedjan
  • · Replies 1 ·
Replies
1

Graduate Is It Possible to Generate Energy with a Microscopic Gate Sorting Molecules?

  • colin9876
  • · Replies 1 ·
Replies
1

High School Can you sort molecules by speed based on temperature?

  • colin9876
  • · Replies 4 ·
Replies
4

Undergrad A question on wave nature of EM radiation

  • SpaceExplorer
  • · Replies 3 ·
Replies
3

High School Solar cell Efficiency & thermal ?

  • ze-ro
  • · Replies 4 ·
Replies
4

Graduate Finding the heat transferred in an ininitesimal quasistatic process

  • Narcol2000
  • · Replies 1 ·
Replies
1

High School Can Entropy Explain the Cold Temperatures of Outer Space?

  • Desiree
  • · Replies 10 ·
Replies
10

High School Cooling Air with Fans: Explained

  • plscfrmpasswd
  • · Replies 6 ·
Replies
6

Undergrad Air Track Experiment: Explaining the Velocity Increase

  • mathsgeek
  • · Replies 7 ·
Replies
7

Graduate Detecting the existence of a sound that has been lost in thermal noise

  • tonyjeffs
  • · Replies 17 ·
Replies
17

Undergrad Why Is Your Tent Wet in the Morning?

  • pivoxa15
  • · Replies 13 ·
Replies
13

Graduate Rotary air compressor and vortex tubes questions?

  • rolinger
  • · Replies 3 ·
Replies
3
  • Poll Poll

High School Can Holding a Teacup Make Tea Cool Faster?

  • Harut82
  • · Replies 7 ·
Replies
7

Undergrad Idea that EM radiation propagates through space in straight lines

  • Arnan
  • · Replies 10 ·
Replies
10

Undergrad Newscientist claims machine violates 2nd law of thermodynamics

  • MedLine
  • · Replies 10 ·
Replies
10

Undergrad Gasoline vs Ethanol: Choosing the Best Fuel for Your Wichita, KS Engine

  • moe7404
  • · Replies 1 ·
Replies
1

Graduate Thermodynamics (Callen) Question

  • Jacobpm64
  • · Replies 3 ·
Replies
3

Graduate Statistical mechanics - why is temperature not a mechanical variable

  • knulp
  • · Replies 2 ·
Replies
2

Undergrad How do aeroplane wings support the forces and engines?

  • Andrew123
  • · Replies 9 ·
Replies
9

Undergrad How does heat leave the earth?

  • 39ster
  • · Replies 3 ·
Replies
3

Undergrad Explan this phenomena with a hot steel rod

  • TSN79
  • · Replies 3 ·
Replies
3

Undergrad Burning Calories, Burning Wood, Grams to Cals?

  • Besowonderous
  • · Replies 21 ·
Replies
21

Undergrad What is the equilibrium temperature of copper and water?

  • Altairs
  • · Replies 4 ·
Replies
4

High School Amount of energy on Earth doesn't grow or shrink

  • Shockwavedoom
  • · Replies 12 ·
Replies
12

High School Practical demonstration of radiation

  • colliculus
  • · Replies 2 ·
Replies
2

Graduate What is the significance of Qrev/T in understanding entropy?

  • aniketp
  • · Replies 8 ·
Replies
8

High School What is the Best Material for Keeping Food Cool in Insulated Boxes?

  • esmeralda4
  • · Replies 3 ·
Replies
3

Graduate Entropy and possibilty of reversal thereof

  • Alan McDougal
  • · Replies 3 ·
Replies
3

Graduate Navier Stokes with chemical reaction

  • optrix
  • · Replies 3 ·
Replies
3

Undergrad How Is Heat Calculated from Friction Over Time?

  • MrJingles
  • · Replies 10 ·
Replies
10

Undergrad House Color and Heat: Visible vs. IR Radiation

  • ejensen6
  • · Replies 8 ·
Replies
8

Undergrad How Does Heat Transfer Affect Engine Block Surface Temperatures?

  • kosl
  • · Replies 4 ·
Replies
4

Undergrad Temperature: Does it make sense to say something is twice as cold(or hot)?

  • Holocene
  • · Replies 17 ·
Replies
17

Graduate Entropy Decrease: Sample Phenomena Explained

  • Domenicaccio
  • · Replies 6 ·
Replies
6

High School Question based on real experience

  • zinedine_88
  • · Replies 5 ·
Replies
5

High School Thermos: Metal vs Glass - What is the Difference?

  • JohnFDS
  • · Replies 3 ·
Replies
3

Undergrad Converting engine power into a force

  • batmx3man
  • · Replies 3 ·
Replies
3

Undergrad Thermodynamics isue not homework but debate

  • billowo
  • · Replies 4 ·
Replies
4

Undergrad Can a pilot hear engine > mach 1?

  • pcrawford
  • · Replies 12 ·
Replies
12

Undergrad Heat Absorbed Changing 2kg Ice to Steam: Calculation

  • panther7
  • · Replies 1 ·
Replies
1

Undergrad Thermodynamics and the Weather

  • music_lover12
  • · Replies 1 ·
Replies
1

Undergrad Calculating Heat Transfer: Freezing Water from -15°C to 10°C

  • Energize
  • · Replies 3 ·
Replies
3

Graduate Equation apply to reversible only or not?

  • siresmith
  • · Replies 2 ·
Replies
2

Undergrad Linearity of Heat Conductance - Is Heat Transfer the Same in All Directions?

  • Yoni
  • · Replies 4 ·
Replies
4

Undergrad Which Liquid to Choose Based on Heat Capacity for Safety?

  • animaul12
  • · Replies 3 ·
Replies
3

Undergrad Is a flame hotter on the outside?

  • animaul12
  • · Replies 1 ·
Replies
1

Undergrad Convection, Conduction, Or Radiation. You decide

  • iteration69
  • · Replies 2 ·
Replies
2

Graduate Mayor improvement in wikipedia's thermal/statistical physics articles

  • Count Iblis
  • · Replies 2 ·
Replies
2

Graduate How do I calculate lines of constant pressure in a Brayton cycle diagram?

  • ingmarvandijk
  • · Replies 1 ·
Replies
1

High School Where do the calories go when you pop corn?

  • DeepSeeded
  • · Replies 18 ·
Replies
18

Undergrad Know something about Meker Burner?

  • martingotu
  • · Replies 2 ·
Replies
2

Undergrad A Ques. From Irreversible Process

  • daemonakadevil
  • · Replies 18 ·
Replies
18

Undergrad Can Enough Windwills Cause Climate Change?

  • Drewman626
  • · Replies 7 ·
Replies
7

Undergrad Why is the boiling point elevation of NaCl solution higher than calculated?

  • jimRH9
  • · Replies 10 ·
Replies
10

Undergrad Can You Manually Create a Vacuum with a Plunger in a Water-Filled Tube?

  • vmars
  • · Replies 1 ·
Replies
1

Undergrad Violation of 2nd Law of Thermodynamics

  • atom888
  • · Replies 7 ·
Replies
7

Graduate How Does Temperature Affect the Frequency Response of Resonating Materials?

  • Wesleytf
  • · Replies 3 ·
Replies
3

Graduate Boltzman Distribution & Principle of a priori probablities

  • Tom1
  • · Replies 1 ·
Replies
1

Undergrad How does thermal expansion effect the diameter of a hole?

  • TheNaturalStep
  • · Replies 3 ·
Replies
3

Graduate Unit cancellation in integration with natural logarithm?

  • Cvan
  • · Replies 4 ·
Replies
4

Undergrad Can Portable Air Conditioners Defy the Laws of Thermodynamics?

  • vertices
  • · Replies 2 ·
Replies
2

Graduate Thermo- Heated Air in Brick Box.

  • zeus77
  • · Replies 1 ·
Replies
1

Graduate Writing correct physical equation for mixing process

  • Micko
  • · Replies 2 ·
Replies
2

Undergrad Thermal Dispersion Software: Find Heater Effects on Silica

  • Lee
  • · Replies 2 ·
Replies
2

Undergrad Boiling liquid in a closed vessel

  • Telmerk
  • · Replies 3 ·
Replies
3

Graduate Can a 10 nm facet area achieve 10^12W/m^2 for laser heating on a tungsten tip?

  • Benindelft
  • · Replies 2 ·
Replies
2

Undergrad Calculate Final Temp of Thin Steel Piece: Heat Transfer Problem

  • JJ420
  • · Replies 2 ·
Replies
2

Undergrad Solving Heat Transfer in an Aluminum Cube: Find Temperature After t Seconds

  • momentum2357
  • · Replies 14 ·
Replies
14

Undergrad CO2 Pressure Formula: Determine Pressure at Any Temperature

  • Hubb
  • · Replies 2 ·
Replies
2

Graduate What is a Closed Path Integral in Thermodynamics?

  • Crazy Tosser
  • · Replies 5 ·
Replies
5

High School What Causes Car Reflections on Hot Roads?

  • chbritton
  • · Replies 2 ·
Replies
2

High School Energy Creation: Gravity as an Infinite Source

  • Gamerex
  • · Replies 43 ·
2
Replies
43

High School Conversion Device: Mechanical to Heat Energy

  • harini_5
  • · Replies 3 ·
Replies
3