Use the Standard Reaction Enthalpies Given Below to Determine ΔH°_rxn

question 60

Multiple Choice

Use the standard reaction enthalpies given below to determine ΔH°_rxn for the following reaction: 2 NO(g) + O₂(g) → 2 NO₂(g) ΔH°_rxn = ?
Given:
N₂(g) + O₂(g) → 2 NO(g) ΔH°_rxn = +183 kJ
1/2 N₂(g) + O₂(g) → NO₂(g) ΔH°_rxn = +33 kJ

• A) -150. kJ
• B) -117 kJ
• C) -333 kJ
• D) +115 kJ
• E) +238 kJ

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