Hydrazine , `N_(2)H_(4) ,` contains aN-N single bond and 4N -H bonds . Use bond energies to calculate `DeltaH`in KJ for the reaction : `N_(2)+2H_(2)toN_(2)H_(4)` `{:(Bond ,"Energies" (KJ.mol^(-1))),(H-H,436),(H-N,386),(N-N,193),(N=N,418),(N-=N,941):}`A. `-425KJ`B. `-76KJ`C. `76KJ`D. `245KJ`

Hydrazine , `N_(2)H_(4) ,` contains aN-N single bond and 4N -H bonds .

1.	Hydrazine , `N_(2)H_(4) ,` contains aN-N single bond and 4N -H bonds . Use bond energies to calculate `DeltaH`in KJ for the reaction : `N_(2)+2H_(2)toN_(2)H_(4)` `{:(Bond ,"Energies" (KJ.mol^(-1))),(H-H,436),(H-N,386),(N-N,193),(N=N,418),(N-=N,941):}`A. `-425KJ`B. `-76KJ`C. `76KJ`D. `245KJ`
Answer» Correct Answer - c

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Hydrazine , `N_(2)H_(4) ,` contains aN-N single bond and 4N -H bonds . Use bond energies to calculate `DeltaH`in KJ for the reaction : `N_(2)+2H_(2)toN_(2)H_(4)` `{:(Bond ,"Energies" (KJ.mol^(-1))),(H-H,436),(H-N,386),(N-N,193),(N=N,418),(N-=N,941):}`A. `-425KJ`B. `-76KJ`C. `76KJ`D. `245KJ`

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