Several theoretical models can be used to predict reaction rates in catalysis:
Transition State Theory (TST): This model assumes that a high-energy transition state exists between reactants and products. The rate of reaction is proportional to the concentration of this transition state. Langmuir-Hinshelwood Mechanism: Often used for heterogeneous catalysis, this model considers the adsorption of reactants on the catalyst surface and their subsequent reaction. Eley-Rideal Mechanism: Another model for heterogeneous catalysis, where one reactant adsorbs on the catalyst surface and reacts directly with another in the gas phase. Michaelis-Menten Kinetics: Commonly used in enzymatic catalysis, this model describes the rate of reaction based on the formation of an enzyme-substrate complex.