Nitric oxide (NO) can be formed from nitrogen, hydrogen and oxygen in two steps. In the first step, nitrogen and hydrogen react to form ammonia: N2(g) + 3H2(g) --> 2NG3(g)          H=-92. kJ In the second step, ammonia and oxygen react to form nitric oxide and water: 4NH3(g) + 5O2(g) --> 4NO(g) + 6H2O(g)          H=-905. kJ Calculate the net change in enthalpy for the formation of one mole of nitric oxide from nitroge

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