Thermodynamics Forum

Post thread
B Pressure in fluid (liquid)
Replies
5
Views
114
B Physically speaking, what happens in Torricelli’s experiment?
Replies
14
Views
209
  • Redirect
Help with designing a power generating system
Replies
–
Views
–
I Feynman's Brownian Ratchet analysis
Replies
10
Views
225
I Interseasonal heat storage / sand battery insulation?
Replies
27
Views
465
I An experiment against the second law of thermodynamics
Replies
19
Views
254
B What actually is static pressure?
Replies
11
Views
289
A I'm trying to follow the proof given in Box 5.3 of MCP (Thorne/Blandford)
Replies
4
Views
226
I Modelling Liquid Hydrogen Boil-Off Rate
Replies
4
Views
230
I Generate heat conduction curves at different time steps
Replies
7
Views
217
I Why does reversibility require equilibrium?
Replies
5
Views
259
B Thermal Insulation Thickness Calculations
Replies
8
Views
256
B Change in entropy of reversible isothermal process
Replies
11
Views
325
I Interesting Thermodynamics Problem deleted in PhysicsStackExchange
Replies
13
Views
540
I Nuclear power plant vs coal power plant efficiency
Replies
32
Views
713
I Trying to wrap my head around gas turbine thermodynamics
Replies
5
Views
647
B Ideas regarding gravity and entropy
Replies
4
Views
377
I How do emissivity and absorptivity affect thermal imaging results?"
Replies
3
Views
356
B I need help understanding the derivation of this 'Absolute Scale of Temperature'
Replies
2
Views
325
B Putting a wet phone in rice vs. leaving it in an open space
Replies
26
Views
1K
B Efficient way to warm a concave body such as Pita bread
Replies
8
Views
397
B Are wind farms stealing the cooling capacity of the wind?
Replies
4
Views
703
B Describing the cooling of a room without any electrical or mechanical devices
Replies
8
Views
416
B Does movement affect H2O freezing temperature?
Replies
14
Views
682
I Effects of altitude on liquid CO2 utilization
2
Replies
53
Views
1K
How much power does it take to heat up air?
Replies
20
Views
35K
I Heat Conductivity with Aluminum Foil
Replies
6
Views
446
I Work done in cycle of a refrigerator (in Heat and Thermodynamics by Zemansky)
Replies
1
Views
356
I Measurement of heat as an interval measurement or a ratio measurement
Replies
9
Views
451
I Calculation of temperature changes (heating a cube in a microwave oven)
Replies
9
Views
748
I Area under the curve of a temperature-time graph -> energy?
Replies
10
Views
822
Tension (and Frequency) with Change in Temperature
2
Replies
40
Views
12K
B How much heat energy can give out put by ionization gas?
Replies
4
Views
510
B Heat pump as a heat engine that operates in reverse
Replies
3
Views
556
A Work done during adiabatic expansion on piston
Replies
8
Views
545
I Simulating a 2-Phase Water System: Tips and Resources for Dynamic Simulation
Replies
4
Views
497
I Questions about my Understanding of Thermodynamics and Statistical Mechanics
Replies
2
Views
480
I Adiabatic cooling in this process involving liquid ammonia
Replies
5
Views
608
I H2O/gold solution will not boil
Replies
14
Views
749
A Time needed to freeze an insulated pipe
Replies
10
Views
1K
A Proof of thermodynamic stability condition
Replies
4
Views
713
B What would happen to perception if temperatures almost reached absolute zero?
Replies
2
Views
669
I Can buoyancy exchange still happen in a gravitational fed water system with closed hydraulic head?
Replies
2
Views
666
I State equations for a thermodynamic substance/system
Replies
9
Views
847
A Question about F.Reif page 66 (thermal interaction of systems)
Replies
4
Views
1K
I Question about the Zeroth law of thermodynamics and Equlibrium
Replies
4
Views
690
I This gas work violates 2nd law of thermodynamics?
Replies
26
Views
2K
I Application of the first law of thermodynamics
2
Replies
46
Views
2K
I Why does an ideal gas satisfy ##(\partial U/\partial P)_T=0##?
Replies
3
Views
580
I Graphical difference between adiabatic and isothermal processes.
Replies
1
Views
638
I Adiabatic Processes: Why does this equation use constant volume and not constant pressure?
Replies
7
Views
823
I Thermodynamic temperature scale and Carnot cycle
Replies
2
Views
778
I Kinetic equation of gases: time between collisions instead of time of colission?
Replies
2
Views
718
I Statistical ensemble in phase space
Replies
29
Views
1K
A Clear night sky radiative cooling -- How to optimize?
Replies
2
Views
750
A Combined diffusion coefficient for gas mixture
Replies
0
Views
664
I Equilibrium between objects at different temperatures?
3
Replies
101
Views
4K
  • Redirect
Spec'ing the power of heater for an atypical heat exchanger problem
Replies
–
Views
–
A Adiabatic compression of piston and finding the velocity ratio of gas
Replies
0
Views
723
I How to use cold air mass flow to support supermarket cooling?
Replies
21
Views
1K
A Why is the concept of cycles overlooked in causation models?
Replies
4
Views
830
I Sign convention on work done to a closed system containing gas
Replies
5
Views
1K
I Irreversible adiabatic processes & entropy change (clarification needed)
Replies
22
Views
2K
I How much energy (in Joules) is stored in a standard 12g CO2 cartridge?
Replies
18
Views
2K
I Enthalpy change in a flow process
Replies
2
Views
857
A Can Hamson-Linde cycle liquidize N2?
Replies
7
Views
919
I Time for a cold volume of air to reach a higher air temperature
Replies
11
Views
1K
B Home mobile air conditioning: Is this a contradiction to thermodynamics?
Replies
30
Views
1K
I Focus Problem for Entropy Change in Irreversible Adiabatic Process
2
Replies
56
Views
3K
I Obtaining this form for molar energy under virial expansion (Callen)
Replies
23
Views
1K
I Equilibrium constant change with stoichiometric doubling (Callen)?
Replies
5
Views
899
I How to see this form for the chemical potential of an ideal gas?
Replies
6
Views
943
I Does Callen's Entropy Expression for a General Ideal Gas Contain an Error?
Replies
19
Views
1K
I Effective Emission Height Calculation?
Replies
7
Views
1K
I Is low entropy found in something very hot?
Replies
26
Views
1K
I Warm-up time for a hollow cylinder
Replies
5
Views
1K
A Temperature and pressure change in an air vessel
Replies
3
Views
1K
A Dual gas (coupled) cyclic processes?
Replies
8
Views
1K
I Energy balance over a methanol reformer
Replies
4
Views
993
I Why is ##dQ = dH## still valid for chemical reaction (Callen)?
Replies
31
Views
1K
1st law of thermodynamics with chemical reaction?
Replies
25
Views
3K
I Why does Callen insist a process must be reversible here?
Replies
8
Views
994
I How can the maximum entropy and minimum energy principles be physical?
Replies
13
Views
1K
I How to know when a reversible process between end states exists?
Replies
12
Views
1K
I Helmholtz entropy of ideal gas mixture is additive?
Replies
3
Views
1K
A Efficiency of Two Carnot Engines Operating in Series
Replies
9
Views
1K
I Finding the difference in Helmholtz free energy using thermodynamic integration
Replies
3
Views
1K
I Clarification about Aircraft Over-Wing Fog Formation (Adiabatic)
Replies
8
Views
1K
I Is Enthalpy a Valid Concept Despite Dimensional Mismatch?
2
Replies
35
Views
3K
I Galaxy redshift and thermodynamics
Replies
10
Views
2K
I Measuring Steam Condensate from my Steam Cleaner
Replies
8
Views
1K
I Will Heating a Sealed Container Cause All Liquid to Convert to Vapor?
Replies
18
Views
1K
I Confusion on Callen's Maximum Work Theorem
Replies
7
Views
1K
I Confusion about the entropy of mixing
Replies
3
Views
1K
B Opening this jar is made easier by cooling or heating?
Replies
8
Views
2K
How does evaporation generate cooling? Swamp coolers edition
Replies
32
Views
2K
A Does anyone know typical values of cutoff ratio in diesel engines?
Replies
1
Views
1K
Kinetic-Potential energy of moving Ice
Replies
7
Views
1K
B Energy seems to disappear when gas is compressed?
Replies
3
Views
1K
I Calculating Pressure Change Filling Gas Cylinders
2
Replies
69
Views
4K

Hot Threads

Recent Insights

Back
Top