Mutual Diffusion of Pairs of Rare Gases at Different Temperatures
- 1 April 1959
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 30 (4), 984-990
- https://doi.org/10.1063/1.1730140
Abstract
The coefficient of mutual diffusion of the binary gas mixtures Ne—A, A—Kr, and Ne–Kr has been determined at 0°, 15°, 30°, and 45°C. Diffusion is allowed to take place between two diffusion bulbs through a precision capillary tube and samples of gas are withdrawn from one bulb at different times and analyzed by a differential conductivity analyzer. From the experimentally determined values of the diffusion coefficient at different temperatures the unlike interaction parameters for the above gas pairs have been calculated by two different methods on the Lennard‐Jones 12:6 model. These values of the force parameters are found to be in good agreement with those obtained from the usual combination rules and also from the thermal diffusion data following the method of Srivastava and Madan. These values are found to reproduce the experimental data on mutual diffusion quite satisfactorily. With Kelvin's method, these data have also been utilized to calculate the self‐diffusion coefficient of neon, argon, and krypton.Keywords
This publication has 34 references indexed in Scilit:
- Force constants for unlike molecules on Exp-six model from thermal diffusionPhysica, 1957
- Thermal Conductivity of Binary and Ternary Rare Gas MixturesProceedings of the Physical Society. Section B, 1957
- The Approach to the Steady State in Gaseous Thermal Diffusion and its Application to Determining the Dependence of Gas Diffusivity on the Concentration RatioProceedings of the Physical Society. Section B, 1954
- Thermal Diffusion of Gas Mixtures and Forces between Unlike MoleculesProceedings of the Physical Society. Section A, 1953
- The Self-Diffusion Coefficient of NitrogenPhysical Review B, 1948
- The Self-Diffusion Coefficient of Uranium HexafluoridePhysical Review B, 1947
- Die Temperaturerscheinungen bei der Diffusion in ruhenden Gasen und ihre meßtechnische AnwendungThe European Physical Journal A, 1947
- The diffusion and thermal diffusion of hydrogen-deuterium, with a note on the thermal diffusion of hydrogen-heliumProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1941
- Die Abhängigkeit des Gasdiffusionskoeffizienten vom MischungsverhältnisAnnalen der Physik, 1909
- Ueber die Verdampfung und die Auflösung als Vorgänge der DiffusionAnnalen der Physik, 1890