The threshold energy for a particular reaction is and the actual average energy of the reacting molecules is . Calculate the activation energy () in required for the reaction to proceed.

Question

The threshold energy for a particular reaction is $120 	ext{ kJ mol}^{-1}$ and the actual average energy of the reacting molecules is $45 	ext{ kJ mol}^{-1}$. Calculate the activation energy ($E_a$) in $	ext{kJ mol}^{-1}$ required for the reaction to proceed.

Prashant Kotian · Accepted Answer

Correct answer: 75. The minimum extra amount of energy required by reactant molecules to participate in a reaction is the activation energy (). The formula is: . Substituting the given values: .

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