1.

Standar enthalpy of formation of threecombustible isomers compound A,B,C are -20Kcal/mol ,30kcal /mol and 40kcal /mol respectively then what willbe order of their enthalpy of combustion ?

Answer»

`DeltaH_(C)^(@)[A]ltDeltaH_(c)^(@)[B]lt DeltaH_(c)^(@)[C]`
`DeltaH_(c)^(@)[B]gtDeltaH_(c)^(@)[A]GT DeltaH_(c)^(@)[C]`
`DeltaH_(c)^(@)[A]gtDeltaH_(c)^(@)[B]gt DeltaH_(c)^(@)[C]`
`DeltaH_(c)^(@)[C]gtDeltaH_(c)^(@)[A]gt DeltaH_(c)^(@)[B]`

Answer :c


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