Chemical reactions are reversible.
Rates of reactions depend on both the forward and reverse reactions of a process. Experiments in Kinetics are designed so the reverse reaction can be neglected, and the rate will depend only on the concentrations of the reactants. Studies in Kinetics focus on the initial rates of reaction when concentrations of products will be very small. Studies in Kinetics can't help here, and we turn to another method of examining chemical reactions, we move on to equilibrium studies. Equilibrium studies are concerned with reactions which are well beyond their initial stages, where both forward and reverse reactions have the same rate, and the concentrations of products and reactants do not change.