The Temperature Dependence of Surface Tension of Pure Fluids

[+] Author and Article Information
Md. Alamgir, J. H. Lienhard

Boiling and Phase Change Laboratory, Mechanical Engineering Department, University of Kentucky, Lexington, Ky.

J. Heat Transfer 100(2), 324-329 (May 01, 1978) (6 pages) doi:10.1115/1.3450803 History: Received July 25, 1977; Online August 11, 2010


The temperature dependence of the surface tension of pure liquids, in contact with their vapors, is correlated using the law of corresponding states. Molecular form is characterized by the Pitzer acentric factor. The temperature dependence reduces to a form identical to that of the van der Waals limiting liquid superheat when the Pitzer factor reaches the van der Waals value. The correlation brings together data for 91 organic and inorganic—polar and nonpolar—substances, within a constant, over the ranges of temperature for which data exist. Only water requires special modification. The accuracy of the correlation is on the order of ± one percent. This correlation will give surface tension over almost the entire range of temperature if one measured value, and the Pitzer factor, are known.

Copyright © 1978 by ASME
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