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Give the bond energies of N equiv N, H-H...

Give the bond energies of N equiv N, H-H and N-H bonds as 945, 436 and 391 kJ`mol^-1` respectively, the enthalpy of the following reaction N 2(g) ​ +3H 2(g) ​ →2NH 3(g) ​ is:

A

`-93 kJ`

B

102 kJ

C

90 kJ

D

105 kJ

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The correct Answer is:
A
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