Question

From the following heats of reaction for each intermediate step

N2(g) + 2O2(g) → 2NO2(g) ΔH1 = + 67.6 kJ/mol
NO(g) + ½ O2(g) → NO2(g) ΔH2 = -56.6 kJ/mol
Calculate the heat of the reaction for the overall reaction below using Hess’s Law :
N2(g) + O2(g) → 2NO(g)

Answer 1

I’m sorry if some of the arrows are wrong. I did this in a rush. I hope this helps.