Postulational basis of the law of increase of entropy.
The law increase of entropy is shown to be a consequence of the central assumption, in the manner of Gibbs, for the construction of the ensemble that represents the physical system. It is no longer necessary to make two separate assumptions in the Gibbs-Tolman development of the bases of statistical mechanics.
Kittel
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Department of Physics, University of California, Berkeley, Calif. 94720.