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The correct thermodynamic conditions for...

The correct thermodynamic conditions for the spontaneous reaction at all temperature is

A

`Delta H lt 0` and `Delta S gt 0`

B

`DeltaH lt 0` and `DeltaS lt 0`

C

`Deltah lt 0` and `DeltaS =0`

D

`DeltaH gt 0` and `Delta S lt 0`

Text Solution

Verified by Experts

The correct Answer is:
a,c
A reaction is spontaneous at all temperatures,if both energy factor an anetropy factor favour the process, i.e., `DeltaHlt0` and`DeltaSgt 0` or when energy factor favours but entropy factor has no roleto play, i.e.,`DeltaHlt0` and`DeltaS = 0`.
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