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On the Gibbs paradox: what does indistinguishability really mean?

A M Lesk

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The Gibbs paradox concerns the entropy of mixing of ideal gases: although the entropy change of mixing samples of different gases is unequal to the entropy change of mixing samples of the same gas, it is not clear within the framework of classical thermodynamics how the identity of the particles effects the analysis. An explicit examination of the concept of indistinguishability can clarify some of the implications of the quantum-mechanical resolution of the Gibbs paradox.


PACS

51.30.+i Thermodynamic properties, equations of state

05.70.Ce Thermodynamic functions and equations of state

MSC

82D05 Gases

Subjects

Plasma physics

Statistical physics and nonlinear systems

Dates

Issue 4 (1 April 1980)



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