Towards a Unified Formulation of Dynamics and Thermodynamics. II. Dissipative Processes and Entropy Production

0358305 - ÚFCH JH 2012 RIV US eng J - Journal Article
Paidarová, Ivana - Durand, P.
Towards a Unified Formulation of Dynamics and Thermodynamics. II. Dissipative Processes and Entropy Production.
International Journal of Quantum Chemistry. Roč. 111, č. 2 (2011), s. 237-244. ISSN 0020-7608. E-ISSN 1097-461X
R&D Projects: GA AV ČR IAA100400501; GA AV ČR IAA401870702
Institutional research plan: CEZ:AV0Z40400503
Keywords : irreversible thermodynamics * fluctuations * chemical kinetics
Subject RIV: CF - Physical ; Theoretical Chemistry
Impact factor: 1.357, year: 2011

The mean values of the macroscopic observables determined in the first paper of the series are used to estimate the intensive parameters of extended Gibbs probability densities. Assuming that the standard deviations of the observables are constant leads to simple exact formulae for the entropy production, thus, extending far from equilibrium, the range of validity of the classical Onsager-Prigogine theory. The regression of a fluctuation and a model of chemical reaction allow to quantify the concept of time-dependent accompanying entropy. The analysis is especially relevant for oscillating regimes.
Permanent Link: http://hdl.handle.net/11104/0196392