Which statement best characterizes the behavior of a homogeneous catalyst during the…
CHEMISTRY · Single correct · A Level · Chemistry · Kinetics · Kinetics
Problem
Which statement best characterizes the behavior of a homogeneous catalyst during the course of a chemical reaction?
(a) It speeds up only the forward reaction, allowing more product to form before equilibrium is reached, while being regenerated afterward.
(b) It appears in the rate law yet its net concentration remains essentially constant because it is regenerated in a later elementary step.
(c) Its concentration decreases steadily to zero because it is consumed in the overall reaction.
(d) It increases the equilibrium constant of the reaction by lowering the activation energy.