Thursday, January 29, 2015

thermodynamics - Entropy: Disorder or energy dispersal?


The first definition of entropy given by Clausius is I believe this S=Q/T

It is as I understand a common fact to understand entropy and maybe often teach it as a measure of disorder through the statistical definition of Boltzmann or Gibbs( depending on the ensemble) S=klnΩ
My question depending entropy, after some searching (look at A MODERN VIEW OF ENTROPY by Frank L. LAMBERT ) is this:


Is the physical meaning of entropy to be understood only in statistical terms as disorder because of the change in the statistical weights Ω, or by looking to the thermodynamics as well, move to a definition of entropy as energy dispersal? In other words, conceive the physical meaning of entropy as a dispersal of the energy inside (or maybe at some points outwards) the system under consideration, where dispersal stands for a more wide allocation through the interior parts of the system( classical or quantum mechanical).




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