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CHM 101 CHM 101 Past Questions Objective Question

Question

A catalyst affects which of the following in a reaction?
Options
A ΔH of the reaction
B Activation energy
Correct Answer
C Equilibrium concentrations
D Product enthalpy
Correct Answer

Option B is the correct answer.

Detailed Explanation

A catalyst works by providing an alternative reaction pathway with a lower activation energy. It does not change the enthalpy change (ΔH), the equilibrium constant, or the equilibrium concentrations.

Hint

What energy barrier does a catalyst help to overcome?

Question Info