Mutual Diffusion of the Gas Pairs H2–Ne, H2–Ar, and H2–Xe at Different Temperatures
- 1 November 1961
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 35 (5) , 1621-1624
- https://doi.org/10.1063/1.1732119
Abstract
The mutual diffusion coefficients of H2 with Ne, Ar, and Xe have been determined by the two‐bulb technique of Ney and Armistead in the temperature range —30° to 68°C. Diffusion was allowed to take place through a precision capillary tube connecting the two diffusion bulbs and samples of the gas were analyzed at different times with the help of a previously calibrated thermal‐conductivity analyzer. A least‐square method was then followed to calculate the force constants on the Lennard‐Jones (12:6) potential model from the experimental values of the diffusion coefficients. Also, using experimental values of the mutual‐diffusion coefficient, thermal conductivity, and viscosity of pure components, the thermal conductivity of various mixtures were calculated and a good agreement with the experimental data was obtained.Keywords
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