This page discusses the frustrations of airline travel caused by lengthy processes like check-in and security. It compares the inefficiencies of these processes to a chemical reaction's rate-determini...This page discusses the frustrations of airline travel caused by lengthy processes like check-in and security. It compares the inefficiencies of these processes to a chemical reaction's rate-determining step, illustrating with the example of hydrogen peroxide decomposition catalyzed by iodide to emphasize how catalysts can enhance efficiency without being consumed.