[074] Dependence of the liquid-vapor surface tension on the range of interaction: A test of the law of corresponding states

Patrick Grosfils and James F. Lutsko, "Dependence of the liquid-vapor surface tension on the range of interaction: A test of the law of corresponding states", J. of Chemical Physics, 130, 54703 (2009) http://jimlutsko.github.io/files/Lutsko_JCP_2009_1.pdf

Abstract

The planar surface tension of coexisting liquid and vapor phases of a fluid of Lennard-Jones atoms is studied as a function of the range of the potential using both Monte Carlo simulations and Density Functional Theory. The interaction range is varied from rc = 2.5 to rc = 6 and the surface tension is determined for temperatures ranging from T* = 0.7 up to the critical temperature in each case. The results are shown to be consistent with previous studies. The simulation data are well-described by Guggenheim's law of corresponding states but the agreement of the theoretical results depends on the quality of the bulk equation of state.