An analysis of reaction rate enhancements by forced concentration oscillations of reactants for an adsorption/desorption type model with Eley-Rideal surface kinetics, is presented. Under cycling conditions in which the cycle time approaches zero, there is considerable rate enhancement relative to optimal steady state for nonlinear kinetics but no improvement for linear kinetics. The presence of inerts or products from irreversible reactions deteriorates the rate enhancement. For cycle times approaching infinity, there is no rate enhancement for either linear or nonlinear kinetics.