Given the following data:
N2(g) + O2(g) → 2NO(g), ΔH = +180.7 kJ
2NO(g) + O2(g) → 2NO2(g), ΔH = -113.1 kJ
2N2O(g) → 2N2(g) + O2(g), ΔH = -163.2 kJ
Use Hess's law to calculate ΔH for the following reaction:
N2O(g) + NO2(g) → 3NO(g)
Express the enthalpy in kilojoules to four significant digits.
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