THE THEORY OF THERMODYNAMIC SYSTEMS WITH INTERNAL VARIABLES OF STATE: NECESSARY AND SUFFICIENT CONDITIONS FOR COMPLIANCE WITH THE SECOND LAW OF THERMODYNAMICS

Based on the entropy-free thermodynamic approach, a generalized theory of thermodynamic systems with internal variables of state is being developed. For the case of nonlinear thermodynamic systems with internal variables of state and linear relaxation, the necessary and suffi cient conditions have been proved for fulfi llment of the second law of thermodynamics in entropy-free formulation which, according to the basic theorem of the theory, are also necessary and suffi cient for the existence of a thermodynamic potential. Moreover, relations of correspondence between thermodynamic systems with memory and systems with internal variables of state have been established, as well as some useful relations in the spaces of states of both types of systems
   
Author:  A. I. Shnip
Keywords:  thermodynamics, systems with internal variables, systems with memory, second law of thermodynamics, thermodynamic potential
Page:  1