JEE Main Chemistry question

Assertion: Lower activation energy fastens the reaction. Reason: If the activation energy of a reaction is zero, temperature will have no effect on the rate constant.

(A)Assertion is True, Reason is True; Reason is correct explanation for Assertion
(B)Assertion is True, Reason is True; Reason is not correct explanation for AssertionCorrect
(C)Assertion is True, Reason is False
(D)Assertion is False, Reason is True

Answer: (B)

Solution

A lower activation energy does allow a larger fraction of molecules to cross the barrier, so the reaction proceeds faster — the Assertion is true. Separately, setting in gives , which is indeed independent of temperature — the Reason is also a true

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Question ID VK-144432