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Note on nonequilibrium stationary states and entropy

Statistical Mechanics 2007-05-23 v1

Abstract

In transformations between nonequilibrium stationary states, entropy might be a not well defined concept. It might be analogous to the ``heat content'' in transformations in equilibrium which is not well defined either, if they are not isochoric ({\it i.e.} do involve mechanical work). Hence we conjecture that un a nonequilbrium stationary state the entropy is just a quantity that can be transferred or created, like heat in equilibrium, but has no physical meaning as ``entropy content'' as a property of the system.

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Cite

@article{arxiv.cond-mat/0312306,
  title  = {Note on nonequilibrium stationary states and entropy},
  author = {G. Gallavotti and E. G. D. Cohen},
  journal= {arXiv preprint arXiv:cond-mat/0312306},
  year   = {2007}
}

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4 pages