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CHEMISTRY

JAMB 2023 - Question 11

Chemistry 2023 JAMB Past Questions - Question 11: The above diagram illustrates the energy profile of the catalyst and uncatalysed reaction of A (g) + B(a) AB(g). Calculate the activation energies in KJ of the catalysed and uncatalysed unreverse reactions.

The above diagram illustrates the energy profile of the catalyst and uncatalysed reaction of A (g) + B(a) AB(g). Calculate the activation energies in KJ of the catalysed and uncatalysed unreverse reactions.

A: 500, 300

B: 300, 500

C: -500, -300

D: -300, -500

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Correct Answer

Explanation

The uncatalysed reverse reaction = 100 - 400 = -300 The calalysed reverse reaction = 100 - 600 = - 500