Abstract
Using computer-simulated results for the radial distribution function of two-dimensional Lennard-Jones fluids, with intermolecular potential separated as in the Weeks-Chandler-Andersen perturbation theory, and the two-dimensional Steele approximation, we propose a very simple equation for the isotherms for adsorption of simple fluids onto flat surfaces. Previous theoretical equations and computer simulation results are reviewed and compared. A first attempt to compare experimental and theoretical results is made in order to show the influence of the choice of the intermolecular potential parameters.
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