2.3 Interacting Systems (Thermal Physics) (Schroeder)
When we have two systems that interact with each other, we can count the macrostates for each and the macrostates for the total system. With very small degrees of freedom (one or two atoms) the probability distribution is very wide. However, when we get to 100 atoms with 100 units of energy, we begin to see that curve tighten sharply. Although we don't have the tools to calculate what happens with numbers comparable to Avogadro's constant, we begin to see a pattern and thus can start to make definitive statements about the 2nd Law.
Playlist: • An Introduction to Thermal Physics by...
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The textbook I am using is: Schroeder, Daniel V. "An Introduction to Thermal Physics" 1st ed., Addison Wesley Longman, 2005.
