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Undergrad Minimization of the Gibbs energy when number of molecules varies

  • murillo137
  • · Replies 16 ·
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16

High School Cooling effect of evaporation occurs even if the surroundings are colder?

  • John Constantine
  • · Replies 10 ·
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10

Graduate Thermal stresses in the stress tensor

  • hunt_mat
  • · Replies 4 ·
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4

Undergrad Pressure builds on its own inside this water tank?

  • saeppi
  • · Replies 21 ·
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21

Undergrad Focus Problem for Entropy Change in Irreversible Adiabatic Process

  • Chestermiller
  • · Replies 60 ·
3
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60

High School Calculating Heat from Drag force on a Rocket Airframe

  • LT72884
  • · Replies 24 ·
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24

Undergrad How can concentration gradient field come into existence immediately?

  • Dario56
  • · Replies 1 ·
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1

Undergrad Efficiency of cycles bounded by two isotherms

  • Philip Koeck
  • · Replies 5 ·
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5

Undergrad An experiment against the second law of thermodynamics

  • cianfa72
  • · Replies 37 ·
2
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37

Undergrad This gas work violates 2nd law of thermodynamics?

  • aliinuur
  • · Replies 65 ·
3
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65

Undergrad Estimate thickness of an object based on radiative heat flux decay curve

  • SimoneSk
  • · Replies 2 ·
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2

High School Why did making the recovery tank cold expedite recovery of refrigerant?

  • sevensages
  • · Replies 1 ·
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1
  • Redirect

Behavior of heat addition in a compressible flow

  • MysticDream
  • · Replies – ·
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High School Calculating vacuum -- These numbers do not make sense

  • Ripcrow
  • · Replies 30 ·
2
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30

High School Generating Energy from Molecular Motion

  • painter
  • · Replies 9 ·
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9

High School Too much energy -- thought experiment

  • Martin Jediny
  • · Replies 42 ·
2
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42

High School Static pressure inside the glass of water

  • adjurovich
  • · Replies 16 ·
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16

High School Pressure in fluid (liquid)

  • adjurovich
  • · Replies 5 ·
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5

High School Physically speaking, what happens in Torricelli’s experiment?

  • adjurovich
  • · Replies 14 ·
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14

Undergrad Feynman's Brownian Ratchet analysis

  • cianfa72
  • · Replies 9 ·
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9

Undergrad Interseasonal heat storage / sand battery insulation?

  • PaulMuadDib
  • · Replies 27 ·
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27

Undergrad Is there a way to calculate how rocket exhaust gas spreads out in empty space after leaving the rocket?

  • Albertgauss
  • · Replies 3 ·
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3

High School What actually is static pressure?

  • adjurovich
  • · Replies 11 ·
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11

High School I have a question about energy & ignoring friction losses

  • seonjunyoo
  • · Replies 5 ·
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5

Graduate I'm trying to follow the proof given in Box 5.3 of MCP (Thorne/Blandford)

  • jouvelot
  • · Replies 4 ·
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4

Undergrad Modelling Liquid Hydrogen Boil-Off Rate

  • JB312
  • · Replies 4 ·
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4

High School Mean Free Path And Ball Bearings In A Box

  • eddiezhang
  • · Replies 3 ·
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3

Undergrad Generate heat conduction curves at different time steps

  • SimoneSk
  • · Replies 7 ·
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7

Undergrad Why does reversibility require equilibrium?

  • member 743765
  • · Replies 5 ·
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5

High School Thermal Insulation Thickness Calculations

  • salvatore13
  • · Replies 8 ·
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8

High School I have a question regarding temperature and the kinetic energy of molecules

  • seonjunyoo
  • · Replies 3 ·
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3

High School Change in entropy of reversible isothermal process

  • Aurelius120
  • · Replies 11 ·
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11

Undergrad Interesting Thermodynamics Problem deleted in PhysicsStackExchange

  • Chestermiller
  • · Replies 13 ·
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13

Undergrad Nuclear power plant vs coal power plant efficiency

  • fog37
  • · Replies 32 ·
2
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32

Undergrad Trying to wrap my head around gas turbine thermodynamics

  • jsh111
  • · Replies 5 ·
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5

High School Ideas regarding gravity and entropy

  • Jstoff
  • · Replies 4 ·
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4

Undergrad How do emissivity and absorptivity affect thermal imaging results?"

  • gmason85
  • · Replies 3 ·
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3

High School I need help understanding the derivation of this 'Absolute Scale of Temperature'

  • Shauryafrom2006
  • · Replies 2 ·
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2

High School Putting a wet phone in rice vs. leaving it in an open space

  • greypilgrim
  • · Replies 26 ·
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26

High School Efficient way to warm a concave body such as Pita bread

  • abrahamabraham
  • · Replies 8 ·
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8

High School Are wind farms stealing the cooling capacity of the wind?

  • queriees
  • · Replies 4 ·
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4

High School Describing the cooling of a room without any electrical or mechanical devices

  • Fabioonier
  • · Replies 8 ·
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8

Undergrad Effects of altitude on liquid CO2 utilization

  • MrFreezeMiser
  • · Replies 53 ·
2
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53

Undergrad How does BTU convert to heat in degrees in a greenhouse?

  • gary350
  • · Replies 1 ·
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1

Undergrad How much power does it take to heat up air?

  • sromag
  • · Replies 20 ·
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20

Undergrad Heat Conductivity with Aluminum Foil

  • john325
  • · Replies 6 ·
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6

Graduate What is the heat capacity of water in meta-stable equilibrium?

  • ORF
  • · Replies 2 ·
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2

Undergrad Work done in cycle of a refrigerator (in Heat and Thermodynamics by Zemansky)

  • MatinSAR
  • · Replies 1 ·
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1

Undergrad Pressure delta 1.0 bar: 0.0 to 1.0 vs 1.0 to 2.0

  • kaare_t
  • · Replies 10 ·
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10

Undergrad Measurement of heat as an interval measurement or a ratio measurement

  • jonohashmo543
  • · Replies 9 ·
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9

Undergrad Calculation of temperature changes (heating a cube in a microwave oven)

  • salazar7
  • · Replies 9 ·
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9

Undergrad Area under the curve of a temperature-time graph -> energy?

  • salazar7
  • · Replies 10 ·
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10

Undergrad Would aluminium foil increase copper tubing insulation?

  • LEx
  • · Replies 1 ·
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1

Graduate Tension (and Frequency) with Change in Temperature

  • Chrono G. Xay
  • · Replies 40 ·
2
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40

High School How much heat energy can give out put by ionization gas?

  • ahmeds
  • · Replies 4 ·
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4

Graduate Work done during adiabatic expansion on piston

  • MysticDream
  • · Replies 8 ·
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8

Undergrad Simulating a 2-Phase Water System: Tips and Resources for Dynamic Simulation

  • sandvoxel
  • · Replies 4 ·
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4

Undergrad Questions about my Understanding of Thermodynamics and Statistical Mechanics

  • Yseult
  • · Replies 2 ·
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2

Undergrad Adiabatic cooling in this process involving liquid ammonia

  • aladinlamp
  • · Replies 5 ·
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5

High School Where the extra energy comes from?

  • habiler
  • · Replies 9 ·
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9

Undergrad H2O/gold solution will not boil

  • SCHROEDERFPM
  • · Replies 14 ·
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14

Graduate Time needed to freeze an insulated pipe

  • oosullivan
  • · Replies 10 ·
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10

Graduate Proof of thermodynamic stability condition

  • chimay
  • · Replies 4 ·
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4

High School Temperature of container, temperature of contents

  • anon31337
  • · Replies 12 ·
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12

High School What would happen to perception if temperatures almost reached absolute zero?

  • lee_st
  • · Replies 2 ·
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2

Undergrad Can Buoyancy Exchange Occur in a Gravity-Fed Closed Hydraulic System?

  • Geospinelsulfid
  • · Replies 2 ·
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2

Undergrad State equations for a thermodynamic substance/system

  • cianfa72
  • · Replies 9 ·
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9

Graduate Question about F.Reif page 66 (thermal interaction of systems)

  • Yathindra
  • · Replies 4 ·
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4

High School Is it possible to boil water by stirring it?

  • Thalita Luna
  • · Replies 37 ·
2
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37

Undergrad Question about the Zeroth law of thermodynamics and Equlibrium

  • MatinSAR
  • · Replies 4 ·
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4

Undergrad Application of the first law of thermodynamics

  • abdossamad2003
  • · Replies 46 ·
2
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46

Undergrad Why is estimation of ##\frac{Pv}{RT}=1+BP+CP^2+...## interesting?

  • zenterix
  • · Replies 2 ·
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2

Undergrad Graphical difference between adiabatic and isothermal processes.

  • zenterix
  • · Replies 1 ·
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1

Undergrad Where are the limits being taken in these thermodynamics equations?

  • zenterix
  • · Replies 0 ·
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0

Undergrad How to measure average thermal conductivity of a metallic material?

  • zenterix
  • · Replies 1 ·
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1

Undergrad Why Use Constant Volume for This Adiabatic Equation?

  • abdossamad2003
  • · Replies 7 ·
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7

Undergrad Thermodynamic temperature scale and Carnot cycle

  • chimay
  • · Replies 2 ·
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2

Undergrad Kinetic equation of gases: time between collisions instead of time of colission?

  • Vladimir_Kitanov
  • · Replies 2 ·
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2

Graduate History - Evolution of ideas in the field of thermodynamics (statistics in mechanical and gas dynamics)

  • Ker_
  • · Replies 4 ·
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4

Undergrad Statistical ensemble in phase space

  • cianfa72
  • · Replies 29 ·
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29

Graduate Clear night sky radiative cooling -- How to optimize?

  • Salah
  • · Replies 2 ·
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2

Undergrad How to understand experiment to measure heat capacity of solid?

  • zenterix
  • · Replies 1 ·
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1

Undergrad Equilibrium between objects at different temperatures?

  • Philip Koeck
  • · Replies 101 ·
4
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101

High School Applying Bernoulli's equation to problems involving a perfect gas

  • Hak
  • · Replies 8 ·
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8
  • Redirect

Spec'ing the power of heater for an atypical heat exchanger problem

  • jackcarroll434
  • · Replies – ·
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Undergrad Pressure: Sealed bottle physics

  • SteveA001
  • · Replies 29 ·
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29

Graduate Adiabatic compression of piston and finding the velocity ratio of gas

  • litmusgod
  • · Replies 0 ·
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0

Undergrad Work in hydrostatic system in cylinder with piston: P_int or P_ext?

  • zenterix
  • · Replies 5 ·
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5

Undergrad Is it accurate to say work is motion against an opposing force?

  • zenterix
  • · Replies 75 ·
3
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75

Undergrad Empirical temperature scales using different thermometers

  • zenterix
  • · Replies 7 ·
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7

Undergrad Constant length metallic wire as a thermometer, using tension?

  • zenterix
  • · Replies 1 ·
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1

Undergrad How Does Temperature Affect Wire Tension at Constant Length?

  • zenterix
  • · Replies 4 ·
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4

Undergrad How to use cold air mass flow to support supermarket cooling?

  • tjrk
  • · Replies 21 ·
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21

Graduate Why is the concept of cycles overlooked in causation models?

  • Twodogs
  • · Replies 4 ·
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4

High School Does Microwave Energy Transfer Depend on Contents Inside?

  • physicsnoobie79
  • · Replies 33 ·
2
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33

Undergrad Sign convention on work done to a closed system containing gas

  • zenterix
  • · Replies 5 ·
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5

Undergrad Irreversible adiabatic processes & entropy change (clarification needed)

  • Juanda
  • · Replies 22 ·
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22

Undergrad How much energy (in Joules) is stored in a standard 12g CO2 cartridge?

  • Lupin
  • · Replies 18 ·
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18

Undergrad Enthalpy change in a flow process

  • ethonodon
  • · Replies 2 ·
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2

High School Why a mug handle gets very hot when microwaved

  • Greg Bernhardt
  • · Replies 25 ·
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25