Letter | Published:

Condensation Coefficients of Various Substances

Nature volume 139, page 374 (27 February 1937) | Download Citation



THE ratio of the number of gas molecules condensing on a surface per second to the total number incident on the surface may be defined as the condensation coefficient (f) of the gas at the surface. It has usually been assumed that this coefficient has the value unity; in other words, that every gas molecule striking the solid surface remains attached to it for some time before returning to the gas phase.

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    , Proc. Roy. Soc., A, 131, 553 (1931); A, 149, 104 (1935).

  2. 2.

    and , Proc. Roy. Soc., A, 156, 6 (1936).

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    , Ann. Phys., 47, 697 (1915).

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  1. University, Glasgow. Jan. 28.

    • T. ALTY


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