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JAMB Chemistry 2008 Question 28

Question 28

Rates of Reaction

A catalyst speeds up the rate of a chemical reaction by

  1. A.taking part in the reaction
  2. B.increasing the activation energy of the reaction
  3. C.lowering the activation energy of the reaction
  4. D.increasing the heat content.
Show the answer and explanation

Answer: C (lowering the activation energy of the reaction)

Explanation

A catalyst provides an alternative pathway with a lower activation energy, so more collisions are successful.