Hope you can help my understanding.(adsbygoogle = window.adsbygoogle || []).push({});

Looking at entropy from a stat mech standpoint,

two systems brought together will result in a higher entropy system.

According to Kittel, the most probable configurations will dominate the statisical properties of the combined system, most probable confiigurations are ones that maxmimize the entropy. (pg 36 Thermal Physics Kittel).

For large systems, the multiplicity function or degeneracy is sharply peaked.

The direction of transfer of thermal energy is governed by what situations maximize entropy.

Is it possible to conceive two very small systems (N small), where thermal energy is transfered from the colder system to the hotter system.

I'm thinking that for small systems, it is conceivable that maximal entropy occurs for thermal energy transfering from a cold object to a hot object.

I have also though that this would be the analoge of a two particles colliding, a fast moving one and slow moving one, where the slower particle looses energy in the collision and the faster particle gaining energy.

Thanks

Az

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# Maximal Entrop, Temperature & Energy Transfer

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