Diffusion coefficient of hydrogen atoms and molecules from accurate spherically averaged H-H2 interaction potentials

摘要: Binary diffusion coefficients of atomic and molecular hydrogen have been calculated from the collision integrals using spherically averaged H-H2 interaction potentials which come analysis recent beam experiments accurate ab initio calculations, differ significantly those previously used in transport studies. The new data various are compared found to lie between direct measurements Khouw et al. Sancier Wise. Estimates viscosity coefficient η12 present work also presented agree best with early experimental values Browning Fox.