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: N,(9) + 3 H,(9) → 2 NH3(9) AH=-92. kJ In the second step, ammonia and oxygen react to form nitric oxide and water: 4 NH3(g) + 50,(9) 4 NO(g) + 6 H,O(g) AH=-905. kJ Calculate the net change in enthalpy for the formation of one mole of nitric oxide from nitrogen, hydrogen and oxygen from these reactions. Round your answer to the nearest kJ.

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ISBN:9781133611097
Author:Steven S. Zumdahl
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Chapter3: Stoichiometry
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Problem 121E: Hydrogen cyanide is produced industrially from the reaction of gaseous ammonia, oxygen, and methane:...
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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:
N½(9) + 3 H2(g) -
2 NH3(g)
AH=-92. kJ
In the second step, ammonia and oxygen react to form nitric oxide and water:
4 NH3(g) + 5 O2(9)
4 NO(g) + 6 H,0(g)
AH=-905. kJ
Calculate the net change in enthalpy for the formation of one mole of nitric oxide from nitrogen, hydrogen and oxygen from these reactions.
Round your answer to the nearest kJ.
Transcribed Image Text: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: N½(9) + 3 H2(g) - 2 NH3(g) AH=-92. kJ In the second step, ammonia and oxygen react to form nitric oxide and water: 4 NH3(g) + 5 O2(9) 4 NO(g) + 6 H,0(g) AH=-905. kJ Calculate the net change in enthalpy for the formation of one mole of nitric oxide from nitrogen, hydrogen and oxygen from these reactions. Round your answer to the nearest kJ.
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