Using Hess's Law, What Is ΔH°_rxn for the Following Reaction

question 121

Multiple Choice

Using Hess's law, what is ΔH°_rxn for the following reaction? NO(g) + O(g) → NO₂(g)

• A) -839.8 kJ/mol
• B) -306.0 kJ/mol
• C) 157.9 kJ/mol
• D) 394.9 kJ/mol
• E) 442.3 kJ/mol

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