Question

Select the correct statement regarding the influence of catalyst on chemical equilibrium.

• A. The catalyst causes a shift in chemical equilibrium.
• B. The catalyst increases the reactant concentration.
• C. The catalyst increases the product concentration.
• D. The catalyst helps the system to reach chemical equilibrium faster.

Answer 1

The correct option is D

The catalyst helps the system to reach chemical equilibrium faster.

Chemical equilibrium is the state in which both reactants and products are present in concentrations which have no further tendency to change with time. The factors which have an influence on chemical equilibrium are concentration, pressure, and temperature. The change in any of these factors causes a shift in chemical equilibrium.

A catalyst does not cause a shift in chemical equilibrium or it does not have any effect on reactant or product concentration. It helps the system to reach chemical equilibrium faster.