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Identify the correct statement regarding...

Identify the correct statement regarding a spontaneous process.

A

Lowering of energy is the only criterion for spontaneity.

B

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

C

Endothermic processes are never spontaneous.

D

Exothermic processes are always spontaneous.

Text Solution

Verified by Experts

The correct Answer is:
D
`DeltaG=-ve` for spontaneous process since `DeltaH=0` for in isolated system, a positive value of `deltaS` givens `-veDeltaG` . ltgbrgt `Delta=0-TDeltaS`
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