1.

Given the bond energies of N=N, H-H and N-H bonds are 945, 436 and 391 kJ/mol respectively, the enthalpy of the reaction, N_(2)(g) + 3H_(2)(g) to 2NH_(3)(g) is

Answer»

`-93`KJ
102 kJ
90 kJ
105 kJ

ANSWER :A


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