The reason why a catalyst increases the rate of reaction is that, it______________?
Correct answer: A. Decreases the energy barrier for reaction
- A. Decreases the energy barrier for reaction
- B. Increases the activation energy
- C. Decreases the molecular collision diameter
- D. None of these
Explanation
A catalyst provides an alternative reaction pathway with a lower activation-energy barrier, allowing more molecules to react per unit time. It does not increase the activation energy or need to reduce collision diameter.
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