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An important step in the synthesis of nitric acid is the conversion of ammonia to nitric oxide. ∆H°f [NH3(g)] = -45.9 kJ/mol; ∆H°f [NO(g)] = 90.3 kJ/mol; ∆H°f [H2O(g)] = -241.8 kJ/mol             4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g)             Calculate ∆H°rxn for this reaction.             A)  -906.0 kJ    B)  -197.4 kJ    C)  -105.6 kJ    D)  197.4 kJ    E)  906.0 kJ

An important step in the synthesis of nitric acid is the conversion of ammonia to nitric oxide. ∆H°f [NH3(g)] = -45.9 kJ/mol; ∆H°f [NO(g)] = 90.3 kJ/mol; ∆H°f [H2O(g)] = -241.8 kJ/mol             4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g)             Calculate ∆H°rxn for this reaction.             A)  -906.0 kJ    B)  -197.4 kJ    C)  -105.6 kJ    D)  197.4 kJ    E)  906.0 kJ

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter4: Energy And Chemical Reactions
Section: Chapter Questions
Problem 42QRT
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An important step in the synthesis of nitric acid is the conversion of ammonia to nitric oxide.

∆H°f [NH3(g)] = -45.9 kJ/mol; ∆H°f [NO(g)] = 90.3 kJ/mol; ∆H°f [H2O(g)] = -241.8 kJ/mol

            4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g)

            Calculate ∆H°rxn for this reaction.

            A)  -906.0 kJ    B)  -197.4 kJ    C)  -105.6 kJ    D)  197.4 kJ    E)  906.0 kJ

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