Nonequilibrium entropy and symmetry principle of transport coefficients

Problem of symmetry of kinetic coefficients is investigated on the basis of the construction of non-equilibrium entropy. Thermodynamical forces introduced by the authors lead to kinetic coefficients satisfying the symmetry principle. Equivalence of these forces to the Onsager thermodynamical forces is proved in the approximation in which the non-equilibrium entropy corresponding to coarse-grain structure is constructed.