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Consider the following data: Delta(f) ...

Consider the following data:
`Delta_(f) H^(2) (N_(2)H_(4), l) =50kJ//mol,, Delta_(f) H^(@) (NH_(3), g)=-46 kJ//mol`, B.E. `(N-H)= 393kJ//mol and B.E. (H-H)=` 436 kJ/mol, also `Delta_("vap") H (N_(2)H_(4),l)= 18kJ//mol`. The N-N bond energy in `N_(2)H_(4)` is

A

226kJ/mol

B

154 kJ/mol

C

190 kJ/mol

D

54.04 k Cal/mole

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The correct Answer is:
C, D
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  12. Change in enthalpy and change in internal energy are state functions. ...

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