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JAMB Chemistry 2002 Question 12

Question 12

Rates of Reaction

The Arrhenius equation expresses the relationship between the speed of a reaction and its

  1. A.molecular collisions
  2. B.heat of reaction
  3. C.catalyst
  4. D.activation energy
Show the answer and explanation

Answer: D (activation energy)

Explanation

The Arrhenius equation k = Ae−Ea/RT shows that the rate constant gets smaller as the activation energy Ea gets larger.