A reaction is close to equilibrium when a rapid reverse reaction slows down and a slower forward reaction speeds up.

Question

Quizplus · Accepted Answer

This is a common observation in chemical reactions approaching equilibrium. As the concentrations of reactants and products approach equilibrium concentrations, the rates of the forward and reverse reactions begin to approach each other. At equilibrium, the rates of the forward and reverse reactions are equal, and the concentrations of reactants and products no longer change over time.

A Reaction Is Close to Equilibrium When a Rapid Reverse