THERMOPHYSICAL PROPERTIES OF ALKALI-METAL VAPORS .2. ASSESSMENT OF EXPERIMENTAL-DATA ON THERMAL-CONDUCTIVITY AND VISCOSITY

An analysis of the available data on the viscosity and thermal conduct ivity coefficients of the alkali metal vapours is presented. The analy sis is based upon theoretical calculations of the properties of the mo natomic systems, described in the preceeding parts I and I.A of the pr esent paper, and making use of the kinetic theory of a binary gas reac ting mixture. A summary of the measurement techniques used, including, whenever possible, the magnitude of the corrections performed on the raw data and the nominal precision of the results, complements the ana lysis. It is concluded that it is possible to select precise and mutua lly consistent sets of experimental results for both viscosity and the rmal conductivity coefficients of lithium, sodium and potassium vapour s among the available literature data and to classify all the data in uncertainty classes. Regarding rubidium and cesium no systematic discu ssion is possible due to a lack of experimental data with sufficient p recision.