The energy change ∆H associated with the reaction NBr3(g) + 3 H2O(g) → 3 HOBr(g) + NH3(g) is +81 kJ. NBr3 is arranged with all o
f the bromines attached to the nitrogen and HOBr is arranged as H O Br. The O H bond is 459 kJ The N H bond is 386 kJ The O H bond is 459 kJ The O Br bond is 201 kJ The strength of the N Br bond is
The energy change will be the energy of the reactants less the energy of the products. And the energy of each compound is the sum of the energy of their bonds. Let's call y the N-Br strength.
