Use the thermodynamic information: ½ N2(g) + ½O2(g) → NO(g) ∆H˚ = 90.4 kJ/mol ½ N2(g) + O2(g) → NO2(g) ∆H˚ = 33.8 kJ/mol 2NO2(g) → N2O4(g) ∆H˚ = –58.0 kJ/mol to calculate ∆H˚ in kJ/mol for the reactio

Question

Use the thermodynamic information:
½ N2(g) +  ½O2(g) → NO(g) ∆H˚ = 90.4 kJ/mol
½ N2(g) + O2(g)  → NO2(g) ∆H˚ = 33.8 kJ/mol
2NO2(g) → N2O4(g) ∆H˚  = –58.0 kJ/mol
to calculate ∆H˚ in kJ/mol for the reaction:  2NO(g) + O2(g) → N2O4(g)

Accepted Answer

Correct answer: A.

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