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Nitrogen oxides undergo many interesting reactions in the environment and in industry. Given the following information, calculate capital deltaH for the overall equation:2 NO2(g) + 1/2 O2(g) N2O5(s).
2 NO(g) + 3/2 O2(g) -> N2O5(s), deltaH = -223.7 kJ
NO(g) + 1/2 O2(g) -> NO2(g), deltaH = -57.1 kJ
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