GENERALIZATION OF THERMAL CONDUCTIVITY AND VISCOSITY DATA FOR MONATOMIC ALKALI METAL VAPOURS.

A method of generalizing transport coefficient data for monatomic alkali metal vapors is proposed which is based on the molecular theory and on the assumption that the potentials of interactions between two identical atoms are similar for all alkali metals. The scaling parameters are deduced from crystal lattice data. Available experimental data on thermal conductivity lambda and viscosity eta are analyzed. It is shown that the deduced principle of correspondence holds within an error less than 5% for caesium, rubidium, potassium, and sodium. Values of lambda and eta are recommended in the 600-1600 K range. Refs.