MHT CET Chemistry question

Identify the CORRECT statement regarding a spontaneous process

(A)Lowering of energy in the reaction process is the only criterion for spontaneity
(B)For a spontaneous process in an isolated system, the change in entropy is positiveCorrect
(C)Endothermic processes are never spontaneous
(D)Exothermic processes are always spontaneous

Answer: (B)

Solution

In an isolated system a spontaneous process is accompanied by (second law); the energy decrease is not the only criterion (entropy also matters), endothermic

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Question ID VK-064625