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Diffusion in helium-noble gas mixtures

Author

Listed:
  • Wahby, A.S.M.
  • Abdel-Rahman, M.
  • Los, J.

Abstract

Diffusion coefficients have been measured of quasi Lorentzian mixtures of He and the noble gases Ne, Ar, Kr and Xe, in the temperature range from 237 to 420 K. Good agreement is obtained with experimental data reported in the literature. From the temperature dependence of D12 the thermal diffusion factor is predicted. These semi-empirical values agree very well with direct experimental determinations. Semi-quantitative agreement is obtained when comparing theoretical and experimental behaviour of the function. 2−∂ In D12∂ In Tp, applying for the theoretical calculations simple model potentials.

Suggested Citation

  • Wahby, A.S.M. & Abdel-Rahman, M. & Los, J., 1982. "Diffusion in helium-noble gas mixtures," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 112(1), pages 225-234.
    • Handle: RePEc:eee:phsmap:v:112:y:1982:i:1:p:225-234
    DOI: 10.1016/0378-4371(82)90216-3
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    References listed on IDEAS

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    1. Santamaría, C.M. & Savirón, J.M. & Yarza, J.C., 1975. "Law of corresponding states and thermal-diffusion factor of Ne Kr and Ar Kr mixtures," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 83(3), pages 615-621.
    2. Santamaría, C.M. & Savirón, J.M. & Yarza, J.C., 1976. "Law of corresponding states and thermal-diffusion factor of He-Ar mixtures from two-bulb measurements," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 84(1), pages 212-215.
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    1. Wahby, A.S.M. & Abdel-Rahman, M. & Los, J., 1982. "Diffusion in helium-noble gas mixtures," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 112(1), pages 214-224.
    2. Santamaría, C.M. & Savirón, J.M. & Yarza, J.C. & Carrión, J.A., 1977. "Isotopic thermal diffusion factors of the noble gases," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 89(1), pages 90-96.
    3. Santamaría, C.M. & Savirón, J.M. & Yarza, J.C., 1976. "Law of corresponding states and thermal-diffusion factor of He-Ar mixtures from two-bulb measurements," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 84(1), pages 212-215.

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