An old book I have on elementary Statistical Mechanics (Rushbrooke) uses as an especially simple case a system with one energy level. This level is doubly degenerate. The author doesn't give an example of such a system. Can anyone think of one? And would it have entropy [itex]k\ ln 2[/itex]?(adsbygoogle = window.adsbygoogle || []).push({});

[My thoughts turn to spin 1/2 particles but I'd like comment.]

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# System with entropy k ln 2

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