Identify the correct statement regarding a spontaneous proc…

Chemistry Thermodynamics and Thermochemistry All Topic Question for Revision Test Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 12, 2026

Identify the correct statement regarding a spontaneous process.

For a spontaneous process in an isolated system, the change in entropy is positive.

Endothermic processes are never spontaneous at higher temperature.

Exothermic processes are always spontaneous.

Lowering of energy in the reaction process is the only criterion for spontaneity.

Text Solution

Verified by Experts

The correct answer is:

Among the given statements, is true while other are false.

Their correct form are

• Endothermic processes can be spontaneous at higher temperature.

• For exothermic reactions, but if reaction may not be spontaneous depending on the temperature of the system.

• The criterion for spontaneity is lowering of energy and increase of entropy.

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