Assertion : Positive catalysts lower the activation energy of the reaction whereas heat of reaction remains same.
Reason : Heat of reaction is equal to the difference between activation energies for forward and the backward reactions.

Question

Assertion : Positive catalysts lower the activation energy of the reaction whereas heat of reaction remains same.

Reason : Heat of reaction is equal to the difference between activation energies for forward and the backward reactions.

TestHub · Accepted Answer

The assertion is true (catalyst lowers Ea, ΔH unchanged), the reason is also true (ΔH = Ea(forward) − Ea(backward)), but the reason does not explain why the catalyst lowers Ea.

Chemistry - Chemical Kinetics Question with Solution | TestHub

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