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Identify the correct statement regarding...

Identify the correct statement regarding a spontaneous process:

A

Exothermic processes are always spontaneous

B

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

C

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

D

Endothermic processes are never spontaneous

Text Solution

Verified by Experts

The correct Answer is:
C
In an isolated system, there is is no exchange of energy or matter between the system and surrounding. For a spontaneous process in an isolated system, the change in entropy is positive, i.e. `Delta S gt 0`.
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