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Rotational Specific Heat and Rotational Entropy of Simple Gases at Moderate Temperatures

Published online by Cambridge University Press:  24 October 2008

G. B. B. M. Sutherland
Affiliation:
Trinity College

Extract

It is well known that the rotational specific heat of a diatomic gas is given by

where R is the gas constant, σ = h2/8π2AKT, h is Planck's constant, T is the absolute temperature, K is Boltzmann's constant, and A is the moment of inertia of the molecule.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1930

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References

* Fowler, R. H., Statistical Mechanics, p. 34.Google Scholar

Bulletin of the National Research Council, 1926.

* The usual notation is , but I have used a and b here to avoid confusion with . The formula was thought at one time to have a theoretical basis but is now known to be really empirical.

* Mulliken, , Physical Review, Vol. 28, p. 1221 (1926).Google Scholar

Ibid. Vol. 30, p. 789 (1927).

* Proc. Camb. Phil. Soc. Vol. 24, p. 280 (1928).CrossRefGoogle Scholar

Fowler, , Statistical Mechanics, p. 53.Google Scholar

Whittaker, and Watson, , Modern Analysis, 3rd ed. p. 119.Google Scholar

* Whittaker, and Watson, , Modern Analysis, 3rd ed. p. 126.Google Scholar

* Mulliken, , Reviews of Modern Physics, Vol. 1, p. 105 (1930).Google Scholar

Journal of American Chemical Society, Vol. 51, pp. 2300, 3194 (1929).CrossRefGoogle Scholar

* Van Vleck, , Physical Review, Vol. 28, p. 1016 (1926).CrossRefGoogle Scholar

Journal American Chem. Soc. Vol. 51, p. 2317 (1929).Google Scholar

* Journal American Chem. Soc. Vol. 48, p. 1520 (1926).CrossRefGoogle Scholar

Ibid. Vol. 45, p. 2277 (1923).

Ibid. Vol. 51, pp. 2300, 3194 (1929).

* Mulholland, loc. cit.