Thermal conductivity and eucken type correction for binary mixtures of N2 with some rare gases

Abstract

The thick-wire variant of the hot-wire method has been used to measure the thermal conductivity of the binary mixtures N2He, N2Ne, N2Kr and N2Xe at 30°C and 45°C. The experimental data for pure N2 and the binary mixtures have been compared with the recent theory of Hirschfelder. Reasons have been put forward for the discrepancy observed between the experimental and the calculated values of the thermal conductivity of pure N2 given by the Hirschfelder's theory. The formula for the thermal conductivity of gas mixtures is found to represent the concentration dependence of the conductivity satisfactorily. The simpler formula for the thermal conductivity of gas mixtures given by Mason and Saxena has also been tested.