How is the Rate-Determining Step Identified in Catalytic Reactions?
The rate-determining step (RDS) is the slowest step in a reaction mechanism that controls the overall reaction rate. In catalytic reactions, identifying the RDS is crucial for formulating the correct rate law. Experimental techniques such as kinetic studies, isotope labeling, and reaction monitoring can help identify the RDS. Once the RDS is known, the rate law can be derived by focusing on this step and its dependence on reactant and catalyst concentrations.