Post Utme Abu 2023 Chemistry Question 31

Practice objective / multiple choice question 31 from the 2023 Post Utme Abu Chemistry examination.

Post Utme Abu 2023 Chemistry Objective / Multiple Choice
Question 31 POST_UTME_ABU • 2023 • CHEMISTRY • objective

The reaction between nitrogen dioxide and water is highly exothermic. Write the balanced chemical equation for this reaction, including the s\tandard enthalpy change \( ΔH^circ \) in kJ/mol.

Answer Options

A. \text{N}_2\text{O}_5 + \text{H}_2\text{O} \rightarrow \text{HNO}_3 + \text{NO}_2 + \Delta H^circ
Correct Answer B. \text{N}_2\text{O}_5 + \text{H}_2\text{O} \rightarrow \text{HNO}_3 + \text{NO}_2 + \Delta H^circ = -59.2 \text{ kJ/mol}
C. \text{N}_2\text{O}_5 + \text{H}_2\text{O} \rightarrow \text{HNO}_3 + \text{NO}_2 + \Delta H^circ = -59.2 \text{ kJ/mol} \times \text{mol}^{-1}
D. \text{N}_2\text{O}_5 + \text{H}_2\text{O} \rightarrow \text{HNO}_3 + \text{NO}_2 + \Delta H^circ = -59.2 \text{ kJ/mol} \times \text{mol}^{-1} \times \text{g}^{-1}
Correct Answer
B
Correct Option:
\text{N}_2\text{O}_5 + \text{H}_2\text{O} \rightarrow \text{HNO}_3 + \text{NO}_2 + \Delta H^circ = -59.2 \text{ kJ/mol}

About This Question

This is Post Utme Abu 2023 Chemistry Question 31. It is one of the objective questions from the 2023 Post Utme Abu Chemistry examination.

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