Assertion (A): May endothermic reactions that are not spontaneous at room temperature become spontaneous at high temperature.
Reason (R ) : Entropy of the system increases with increase in temperature.

Options

A. Assertion is true but the Reason is false
B. Assertion is false, Reason is true
C. Both Assertion and Reason are true and the Reason is a correct explanation of the Reason.
D. Both Assertion and Reason are true but Reason is not a correct explanation of the assertion.

Answer

C

Explanation

As we know that all exothermic reactions are not spontaneous whereas all such type of reactions where the entropy of system increases are spontaneous . So, we can say where the internal energy of system decreases and randomness increases the reaction become spontaneous .Hence, both assertion and reason are true and reason explains the assertion.