Azeotropes can influence catalytic reactions in several ways: 1. Separation Challenges: Azeotropic mixtures complicate the separation of products and reactants, necessitating advanced techniques like azeotropic distillation or the use of entrainers. 2. Reaction Rates: The presence of an azeotrope can affect the concentration of reactants in a liquid-phase catalytic reaction, thereby influencing reaction rates. 3. Selectivity and Yield: The formation of azeotropes can impact the selectivity and yield of desired products by altering the reaction environment.