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Once the [[Chemical Reaction|reaction]] is complete 806kJ will be released.
{| class="wikitable"
|-
| style="height:20px; width:100px; text-align:center;" |'''Bond'''
| style="height:20px; width:150px; text-align:center;" |'''Energy in kJ/mol'''
|-
| style="height:20px; width:100px; text-align:center;" |H-H
| style="height:20px; width:150px; text-align:center;" |436
|-
| style="height:20px; width:100px; text-align:center;" |N≡N
| style="height:20px; width:150px; text-align:center;" |941
|-
| style="height:20px; width:100px; text-align:center;" |N-H
| style="height:20px; width:150px; text-align:center;" |391
|}
{| class="wikitable"
|-
|[[File:StructuralDiagramHydrogen+Nitrogen.png|center|500px]]
|-
| style="height:20px; width:200px; text-align:center;" |In the [[Chemical Reaction|reaction]] between [[Hydrogen]] and [[Nitrogen]] the [[Chemical Bond|chemical bonds]] in the [[reactant]]s must be broken first before the [[Chemical Bond|bonds]] in the [[product]]s are formed.
|}
There are 3 H-H [[Chemical Bond|bonds]] and 1 N≡N [[Chemical Bond|bonds]].
3 x 436 + 1 x 941 = 2249kJ
Therefore 2249kJ/mol are needed to break the [[Chemical Bond|bonds]] in the [[reactant]]s.
There are 6 N-H [[Chemical Bond|bonds]].
6 x 391 = 2346kJ
Therefore 2346kJ/mol is released when the [[Chemical Bond|bonds]] in the [[product]]s form.
Once the [[Chemical Reaction|reaction]] is complete 97kJ will be released.