On mass transfer thermodynamics in nonisothermal molecular liquid mixtures

Mass transfer in a nonisothermal binary molecular mixture is systematically discussed in terms of nonequilibrium thermodynamics, allowing, for the first time, a noncontradictory and unambiguous description of the process. The thermodynamic approach and hydrodynamic approach are compared, revealing that nonequilibrium thermodynamics and physicochemical hydrodynamics yield essentially the same results for molecular systems. The limits of applicability for the suggested version of the thermodynamic approach are determined for large particles.