Given the Following Two Equations and Their Corresponding Enthalpies

question 59

Multiple Choice

Given the following two equations and their corresponding enthalpies:
CO (g) + ¹/₂ O₂ (g) →CO₂ (g) D H ₁ = - 283.0 kJ N₂ (g) + O₂ (g) →2 NO (g) D H ₂ = 180.6 kJ What is the enthalpy of reaction D H _rxn for the reaction that follows?
CO (g) + NO (g) →CO₂ (g) + ¹/₂ N₂ (g) D H _{net rxn} = ??

• A) D H _rxn = - 746.6 kJ
• B) D H _rxn = - 385.4 kJ
• C) D H _rxn = - 373.3 kJ
• D) D H _rxn = - 192.7 kJ
• E) D H _rxn = - 102.4 kJ

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