In a reaction at equilibrium, what is the effect of adding a catalyst?

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Question: In a reaction at equilibrium, what is the effect of adding a catalyst?

Options:

Correct Answer: No effect on the equilibrium position

Solution:

A catalyst speeds up the rate of both the forward and reverse reactions equally, thus having no effect on the position of the equilibrium.

In a reaction at equilibrium, what is the effect of adding a catalyst?

In a reaction at equilibrium, what is the effect of adding a catalyst?

Step 1: Understand what equilibrium means. It is a state where the forward and reverse reactions occur at the same rate.
Step 2: Know what a catalyst is. A catalyst is a substance that speeds up a chemical reaction without being consumed in the process.
Step 3: Realize that when a catalyst is added to a reaction at equilibrium, it affects both the forward and reverse reactions equally.
Step 4: Since the catalyst speeds up both reactions at the same rate, it does not change the concentrations of the reactants and products at equilibrium.
Step 5: Conclude that adding a catalyst does not shift the position of the equilibrium; it only helps the system reach equilibrium faster.

Catalysis – A catalyst increases the rate of a chemical reaction by lowering the activation energy, affecting both the forward and reverse reactions equally.
Equilibrium – In a chemical equilibrium, the rates of the forward and reverse reactions are equal, and the concentrations of reactants and products remain constant.
Effect of Catalysts on Equilibrium – Adding a catalyst does not change the position of equilibrium; it only helps the system reach equilibrium faster.