1.

The occurrence of a reaction is impossible if

Answer»

`DeltaH" is "+ve, DeltaS " is ALSO + ve but "DELTAHLT TDeltaS`
`DeltaH" is- ve , "DeltaS " is also - ve but "DeltaH GT TDeltaS`
`DeltaH" is - ve ,"DeltaS " is "+ve`
`DeltaH" is + ve ,"DeltaS " is "- ve`

SOLUTION :`+ ve DeltaH and - ve DeltaS` both oppose the reaction.


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