Abstract
The thermal conductivity of the binary gas mixtures Nc-A, Ne-Kr and A-Kr has been measured at 38°C for various concentrations by using the `thick wire' variant of the `hot wire' method. These data are likely to be of great use for gas analysis in the usual experiments on diffusion and thermal diffusion and have, therefore, been represented by semi-empirical equations giving the conductivity over the entire range of concentration. The experimental values of thermal conductivity have been compared with those calculated on the Lennard-Jones 12-6 model and the modified Buckingham exp-six model. A simple modification of the Lindsay-Bromley formula has been suggested and is found to reproduce the experimental data extremely well. The thermal conductivity of the ternary mixture Ne-A-Kr has also been measured for different compositions of the mixture.
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