Second law of Thermodynamics: Why is it only "almost" always true that entropy is non-decreasing?
44140
Chance of objects going against greater entropy?
88658
Confusion regarding the principle of least action in Landau & Lifshitz "The Classical Theory of Fields"
28995
Entropy and Crystal Growth
38293
How does the formation of a solar system not break the second law of thermodynamics?
47030
Entropy as an arrow of time
38758
What is entropy really?
35963
Why is the state of a simple compressible system completely specified by two independent intensive properties?
23144
How does entropy depend on location and scale?
127393
When is temperature not a measure of the average kinetic energy of the particles in a substance?
66919
When/why does the principle of least action plus boundary conditions not uniquely specify a path?
148945
Is the coefficient of friction always less than unity?
18026
How can it be that the beginning universe had a high temperature and a low entropy at the same time?
110621
2nd law of thermodynamics' violation?
114696
Is the second law of thermodynamics a fundamental law, or does it emerge from other laws?
48497
Doesn't entropy increase backwards in time, too?
59670
For an isolated system, can the entropy decrease or increase?
148506
Why doesn't the entropy increase when two similar gases mix with each other?