A Correlation of Molecular Parameters for Transport Properties of Polar Gases

Abstract

A method is presented for estimating the dispersion-energy parameters of the canonically averaged pair potential energy function for polar molecules. The empirical parameters are correlated with critical temperature and polarizability through the principle of corresponding states and the Mavroyannis-Stephen dispersion theory. The method predicts viscosities and diffusivities of dilute gas mixtures which are within experimental uncertainty of measured values.