1.

If the activation energy for the forward reaction is 150 "kJ mol"^(-1)and that of the reverse reaction is 260 "kJ mol"^(-1), what is the enthalpy change for the reaction ?

Answer»

410 `"kJ mol"^(-1)`
`-110" kJ mol"^(-1)`
`110" kJ mol"^(-1)`
`-410" kJ mol"^(-1)`

SOLUTION :(b) : `DeltaH=E_(f)-E_(b)=150-260" kJ"=-110" kJ"`


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