Abstract
Thermodynamics of curved boundary layers is used to study surface properties of Lennard–Jones fluids and an equation is obtained for the surface tension of the spherical interfaces. The work of cavity formation inside a fluid is utilised to calculate the surface tension. The scaled particle theory (SPT) equation of Pierotti and Stillinger are properly modified. The calculations by the modified Stillinger equation predicts the surface tension in any radius of curvature and the results are in good agreement with the experimental data. But for Pierotti equation, due to low sensitivity to temperature, good agreement obtained only at low temperatures.
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