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On Nernst’s Theorem and Compressibilities

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Document pages: 6 pages

Abstract: The unattainability of the absolute zero of temperature is proved by using Carnot’s theorem. Hence this unattainability is distinct from the Planck-Fer-mi statement of the Third Law of Thermodynamics that the entropy vanishes at  T=0. It is shown that the isothermal compressibility KT is in general larger than the adiabatic compressibility Ks and the difference KT − Ks vanishes in the low temperature limit.

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