Which will not alter the composition of an equilibrium mixture?

Question

Quizplus · Accepted Answer

Addition of a catalyst does not alter the composition of an equilibrium mixture as it only speeds up the forward and backward reactions equally. It does not change the position of the equilibrium. Heat (B) can shift the position of the equilibrium depending on whether the reaction is exothermic or endothermic. Addition of more product (C) can shift the equilibrium towards the reactants, whereas addition of more reactant (D) can shift the equilibrium towards the products.

Which Will Not Alter the Composition of an Equilibrium Mixture