Results of an Experimental Investigation of the Viscosity of Rubidium and Cesium Vapors.

The viscosity of rubidium vapors in the temperature range 900 - 1180 K at pressures p equals 0. 4 - 1. 5 bar is experimentally determined with an accuracy of 2. 5%. The results are theoretically generalized for rubidium vapors within the temperature range 700 - 1500 K and pressures p equals 0. 01 - 10 bar. A generalization of experimental data for cesium vapor viscosity within the temperature range 800 - 1500 K and pressures p equals 0. 01 - 10 bar is presented.