An Important Step in the Synthesis of Nitric Acid Is

question 20

Multiple Choice

An important step in the synthesis of nitric acid is the conversion of ammonia to nitric oxide according to the following balanced chemical equation.What is ΔH°_rxn for this reaction? 4NH₃(g) + 5O₂(g) → 4NO(g) + 6H₂O(g)
Substance ΔH°_f(kJ/mol)
NH₃(g) -46.3
NO(g) 90.3
H₂O(g) -241.8

• A)-1274.8 kJ/mol
• B)-904.4 kJ/mol
• C)-240.2 kJ/mol
• D)-197.8kJ
• E)197.8 kJ/mol

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