1.

(A) The addition of catalyst lowers the activation barrier, yet there is no change in the enthalpy of reaction. (R ) Enthalpy change is equal to the difference in the activation energy for the forward and the backward reactions.

Answer»

Both (A) and (R ) are true and (R ) is the CORRECT explanation of (A)
Both (A) and (R ) are true and (R ) is not the correct explanation of (A)
(A) is true but (R ) is false
Both (A) and (R ) are false

Answer :B


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