When a positive catalyst is added to a reversible reaction at equilibrium in a closed vessel, which — Chemical Equilibrium Chemistry Question

💡 Solution & Explanation

A catalyst only provides an alternative pathway with a lower activation energy, thereby increasing the rates of both the forward and backward reactions by the same proportion. It does not alter the equilibrium constant $K_c$, the standard Gibbs free energy change $\Delta G^\circ$, or the enthalpy change $\Delta H^\circ$.