An Important Step in the Synthesis of Nitric Acid Is

question 44

Multiple Choice

An important step in the synthesis of nitric acid is the conversion of ammonia to nitric oxide. 4NH₃(g) + 5O₂(g) → 4NO(g) + 6H₂O(g)
Calculate ΔH°_rxn for this reaction.
ΔH°_f [NH₃(g) ] = −45.9 kJ/mol; ΔH°_f [NO(g) ] = 90.3 kJ/mol; ΔH°_f [H₂O(g) ] = −241.8 kJ/mol

• A)−906.0 kJ
• B)−197.4 kJ
• C)−105.6 kJ
• D)197.4 kJ
• E)906.0 kJ

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Definitions:

Electrocardiography

The process by which a graphic pattern is created to reflect the electrical impulses generated by the heart as it pumps.

Electrical Impulses

Signals that travel along nerve cells and are essential for the functioning of the nervous system and muscular contractions.

Graphic Pattern

A visual motif or design repeated in a predictable manner, often used in artwork, textiles, and digital graphics.

ECG Strip

A graphical representation of the heart's electrical activity as recorded during an Electrocardiogram (ECG) test.