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A theory of the critical temperatures of the normal paraffins

Published online by Cambridge University Press:  24 October 2008

J. Corner
Affiliation:
Armament Research DepartmentMinistry of Supply

Extract

A simple model of independent curled-up molecules is examined theoretically. The critical temperature is found to be of the right order of magnitude but does not increase sufficiently rapidly with the size of the molecule. The Onnes constant and the critical density show the discrepancies expected from the theoretical equation of state, and the former also has an incorrect dependence on molecular weight. In the critical region, therefore, the paraffins cannot be regarded as an assembly of independent molecules, curled up in the way expected at high temperatures and low densities.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1946

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References

REFERENCES

(1)Rehaag, H. and Stuart, H. A.Phys. Z. 38 (1937), 1027.Google Scholar
(2)Kast, W. and Stuart, H. A.Phys. Z. 40 (1939), 714.Google Scholar
(3)Benz, C. A. and Stewart, G. W.Phys. Rev. 46 (1934), 703.CrossRefGoogle Scholar
(4)Campbell, J. A. and Hildebrand, J. H.J. Chem. Phys. 11 (1943), 334.CrossRefGoogle Scholar
(5)Eisenstein, A. and Gingrich, N. S.Phys. Rev. 62 (1942), 261.CrossRefGoogle Scholar
(6)Kuhn, W.Kolloidzschr. 68 (1934), 2.Google Scholar
(7)Thompson, H. W.Ann. Rep. Chem. Soc. 38 (1941), 46.Google Scholar
(8)Sakurada, L.Z. phys. Chem. B, 38 (1938), 407.CrossRefGoogle Scholar
(9)Hamaker, H. C.Physica, 4 (1937), 1038.CrossRefGoogle Scholar
(10)Slater, J. C. and Kirkwood, J. G.Phys. Rev. 38 (1931), 237.CrossRefGoogle Scholar
(11)Hellmann, H.Acta Physicochim. 2 (1935), 273.Google Scholar
(12)Allsopp, C. B. and Willis, H. F.Proc. Roy. Soc. A, 153 (1936), 379.Google Scholar
(13)Lennard-Jones, J. E. and Devonshire, A. F.Proc. Roy. Soc. A, 163 (1937), 53.Google Scholar
(14)Corner, J.Trans. Faraday Soc. 41 (1945), 617.CrossRefGoogle Scholar