Classical Theory For The Interaction Of Gas Atoms With Solid Surfaces

Download or read book Classical Theory for the Interaction of Gas Atoms with Solid Surfaces written by Roderick Matheson Logan and published by . This book was released on 1967 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: A classical theory for the interaction of gas atoms with solid surfaces is presented. The principal assumptions of the model used are: (1) The surface atoms involved in the collisions can be represented as independent one-dimensional oscillators; (2) the gas atoms interact with the surface through a stationary square-well attractive potential and an exponential repulsive potential; (3) the surface is flat so that the tangential velocity component of the gas atom is unchanged; (4) the surface oscillators have an equilibrium energy distribution at the temperature of the solid. This model represents a logical successor to the 'hard-cube' model introduced by Logan and Stickney (J. Chem. Phys. 44, 195 (1966)) and allows the important effects involving the collision time and the natural frequency of the surface atoms to be taken into account. (Author).