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

Understand the adaptations and challenges associated with the transition from aquatic to terrestrial environments.

Analyze factors contributing to the vulnerability and decline of amphibian populations.

Distinguish between the structural and functional adaptations in the respiratory and buoyancy control systems of aquatic vertebrates.

Understand the evolutionary importance of the amniote egg and its components in facilitating terrestrial life.

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