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For an exothermic reaction, the energy of activation of the reactants is:

1. equal to the energy of activation of products
2. less than the energy of activation of products
3. greater than the energy of activation of products
4. Sometimes greater and sometimes less than that of the products

Correct answer: greater than the energy of activation of products

Solution

In an exothermic reaction, the reactants have higher energy than the products, so the activation energy for the forward reaction is greater than that for the reverse reaction.

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