The energies of activation for forward and reverse reactions for A2 + B2 ⇋ 2AB are 180kJ mol^–1 and 200kJ mol^–1 respectively.

The energies of activation for forward and reverse reactions for A2 + B2 ⇋ 2AB are 180kJ mol–1 and 200kJ mol–1 respectively. The presence of a catalyst lowers the activation energy of both (forward and reverse) reactions by 100kJ mol–1. The enthalpy change of the reaction (A2 + B2 → 2AB) in the presence of a catalyst will be (in kJ mol–1 )(a) 20 (b) 300(c) 120 (d) 280.

Answers

Correct option (a) 20  Explanation:

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Answered by Melissa Nguyen

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