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Which of the following is the condition ...

Which of the following is the condition for a non spontaneous reaction at high temperature but spontaneous at low temperature ? 

A

`DeltaH` and `DeltaS` both `+ve`

B

`DeltaH` is `-ve` and `DeltaS` is `+ve`

C

`DeltaH` and `DeltaS` both `-ve`

D

`DeltaH` is `+ve` and `DeltaS` is `-ve`

Text Solution

Verified by Experts

The correct Answer is:
D
`DeltaG=DeltaH-TDeltaS=+ve`
for spontaneous change `DeltaHgt0,DeltaSlt0`
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