MECHANODIFFUSION IN A SLIGHTLY RAREFIED-GAS MIXTURE

The flow of a rarefied gas mixture in a plane channel with mobile plat e is considered. The plates of channel are assumed to be of different nature. Entropy production in the system is calculated and phenomenolo gical equations of non-equilibrium thermodynamics are obtained. The va lidity of the Onsager relation for kinetic coefficients is shown. A ph enomenon called mechanodiffusion is predicted, and an experimental inv estigation of the phenomenon is carried out. The experimental results confirm the theoretical predictions. The effect can be used for gas mi xtures and isotopes separation.