Table of Contents
Journal of Thermodynamics
Volume 2011, Article ID 203203, 10 pages
Research Article

Nonequilibrium Thermodynamics Based on the Distributions Containing Lifetime as a Thermodynamic Parameter

Kiev Institute for Nuclear Research, National Academy of Sciences of Ukraine, prospekt Nauki 47, 252028 Kiev, Ukraine

Received 7 June 2011; Revised 3 August 2011; Accepted 5 August 2011

Academic Editor: L. De Goey

Copyright © 2011 Vasiliy Vasiliy Ryazanov. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


To describe the nonequilibrium states of a system, we introduce a new thermodynamic parameter—the lifetime of a system. The statistical distributions which can be obtained out of the mesoscopic description characterizing the behaviour of a system by specifying the stochastic processes are written down. The change in the lifetime values by interaction with environment is expressed in terms of fluxes and sources. The expressions for the nonequilibrium entropy, temperature, and entropy production are obtained, which at small values of fluxes coincide with those derived within the frame of extended irreversible thermodynamics. The explicit expressions for the lifetime of a system and its thermodynamic conjugate are obtained.