On diffusion-controlled evolution of closed solid-state thermodynamic systems at constant temperature and pressure

Abstract

On the basis of analogy between a closed mechanical dissipative system and a closed solid-state thermodynamic system out of equilibrium at constant temperature and pressure, a principle describing the time evolution of the thermodynamic system has been formulated. The principle makes it possible to derive the time development of the macroscopic parameters of the thermodynamic system. A simple application of the principle to the diffusion in the solid-state system leads to the well known Fick's laws, whereas its application to more complicated systems brings original results which cannot be obtained by means of recent approaches.