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18 June, 16:57

For a given reaction, adding a catalyst increases the rate of the reaction by

(1) providing an alternate reaction pathway that has a higher activation energy

(2) providing an alternate reaction pathway that has a lower activation energy

(3) using the same reaction pathway and increasing the activation energy

(4) using the same reaction pathway and decreasing the activation energy

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Answers (2)
  1. 18 June, 19:50
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    The answer is (2) providing an alternate reaction pathway that has a lower activation energy. The lower activation energy will lead to the increase of rate of the reaction.
  2. 18 June, 19:53
    0
    Answer : Option 2) providing an alternate reaction pathway that has a lower activation energy

    Explanation : When a catalyst is added to a chemical reaction it increases the rate of reaction by lowering the energy of activation. It provides an alternate pathway for a reaction to proceed with a lower Ea energy. Usually a catalyst never gets consumed in the reaction process. It will appear in the reaction mechanism steps but not in the overall reaction like reactants and products.
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