The role of a catalyst in a chemical reaction is to change the__________________?
Correct answer: B. Activation energy
- A. Equilibrium constant
- B. Activation energy
- C. Final products
- D. Heat of reaction
Explanation
A catalyst provides an alternative reaction pathway with lower activation energy, increasing the reaction rate in both directions. It does not change the equilibrium constant, heat of reaction, or final equilibrium composition.
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