Author(s)

James R. McNabb III¹, Shigeji Fujita¹, Akira Suzuki²

¹Department of Physics, University at Buffalo, SUNY, Buffalo, USA.
²Department of Physics, Tokyo University of Science, Tokyo, Japan.

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 K_T is in general larger than the adiabatic compressibility K_s and the difference K_T − K_s vanishes in the low temperature limit.

Nernst’s Theorem, Carnot’s Theorem, Adiabatic Compressibility, Isothermal Compressibility: The Third Law of Thermodynamics

McNabb III, J. , Fujita, S. and Suzuki, A. (2017) On Nernst’s Theorem and Compressibilities. Journal of Modern Physics, 8, 839-843. doi: 10.4236/jmp.2017.85052.