Essential Chemistry for IGCSE - Chemical Reactions (Section 2 - No. 2)
How does a catalyst affect the equilibrium of a reversible reaction?
It shifts the equilibrium position to favor the products.
It shifts the equilibrium position to favor the reactants.
It increases the rate of both the forward and reverse reactions equally.
It increases the rate of only the forward reaction.
Explanation
A catalyst speeds up both the forward and reverse reactions equally, so the equilibrium position does not change; it just reaches equilibrium faster.
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