Nitric oxide gas, NO(g), can be oxidized in air to produce nitrogen dioxide gas, NO2(g):
2 NO(g) + O2(g) → 2 NO2(g)
Determine the enthalpy change for this reaction
using any of these thermochemical equations:
O2(g) → 20(g)
AH = +495 kJ
NO(g) + O2(g) → NO2(g) + O2(g) AH = -199 kJ
203(g) → 302(g)
AH = -427kJ