All Questions
6 questions
4
votes
0
answers
48
views
Why Onsager's formulation of thermoelectricity is better than Bridgman's?
General comment: despite the longish historical introduction this question is not about the history of physics but rather about a specific conceptual problem in physics.
Following Bridgman in the ...
- 20.4k
0
votes
4
answers
290
views
Heat being transferred from colder object to hotter object
My son was watching a YouTube video on entropy (The Most Misunderstood Concept in Physics). At about 11:30, it said that in theory it is possible to observe, say, "heat" moving from colder ...
- 313
5
votes
9
answers
8k
views
Can heat(?) flow from a cold object to hot object?
When we dip a spoon (stainless steel) into ice cream, does it becomes cold or stay the same temperature? If it does, can we say that heat(?) can flow from cold to hot objects?
Is this the reason ...
2
votes
1
answer
951
views
What does the concept of "Entropy Flow" mean in detail?
Recently a found a paper on the thermoelectric effect:
https://williamsgj.people.cofc.edu/Thermoelectric%20Effect.pdf
When I started with Chapter 5 "Irreversible Thermodynamics" I struggle ...
- 1,391
1
vote
3
answers
1k
views
Entropy Change - which formula to use?
I am looking at a system of two solids A and B, that is isolated.
A is at a higher temperature; thus, we have heat transfer from A to B.
If I wished to calculate the entropy change:
$$\Delta S_{tot} = ...
- 358
0
votes
4
answers
2k
views
Work done in adiabatic reversible process
I was solving a problem on turbine.the steam works on turbine adiabatic reversibly .Is change in enthalpy or is it change in internal energy which equal this work?
- 19