The behavour of fluids of Quasi-Spherical molecules. III. Surface tensions

Abstract

Theoretical surface tensions at absolute zero have been worked out for liquids whose molecules interact according to the Lennard-Jones potential

U = λ/Rⁿ - μ/R^m

taking the two sets of exponents : n=12, m=6 and n=28, m=7.

The predicted difference between the reduced surface tensions for these two potentials is shown by the experimental surface tensions of monatomic and diatomic liquids on the one hand, and of liquids of polyatomic quasi-spherical molecules on the other hand.