MUTUAL DIFFUSION OF PAIRS OF RARE GASES AT DIFFERENT TEMPERATURES

Journal Article · Wed Apr 01 04:00:00 EST 1959 · Journal of Chemical Physics (U.S.)

DOI:https://doi.org/10.1063/1.1730140· OSTI ID:4255464

Srivastava, B N; Srivastava, K P

The eoefficient of mutual diffusion of the binary gas mixtures Ne--Ar, Ar--Krs and Ne--Kr has been determined at 0, 15, 30s 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is allowed to take place between two diffusion bulbs through a precision capillary tube and samples of gas are withdrawn from one bulb at different times and analyzed by a differential conductivity analyzer.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 I2:6 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, argons and krypton. (auth)

• Research Organization: Indian Assoc. for the Cultivation of Science, Calcutta
• Sponsoring Organization: USDOE
• NSA Number: NSA-13-013286
• OSTI ID: 4255464
• Journal Information: Journal of Chemical Physics (U.S.), Journal Name: Journal of Chemical Physics (U.S.) Vol. Vol: 30; ISSN JCPSA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ARGON
CAPILLARIES
CHEMISTRY
DIFFUSION
ELECTRIC CONDUCTIVITY
KRYPTON
LENNARD-JONES POTENTIAL
MATHEMATICS
MIXING
NEON
RARE GASES
THERMAL DIFFUSION