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Re: ENERGY WITH Q


On Mon, 29 Oct 2001, John S. Denker wrote:

Any energy change in a system that is associated exclusively with
an alteration in the occupation numbers (rather than the energy
levels) of the allowed quantum states *will* alter the entropy
of the system and ought, therefore, to be considered "heat."

I don't get it.

How are we going to change the entropy without changing the
energy (at any
nonzero temperature)?


I didn't quite understand the comment either, as it seems that one changed
the energy by changing the occupation numbers?