Problem: Calculate the enthalpy of the reaction 2NO (g) + O2 (g) → 2NO2 (g) given the following reactions and enthalpies of formation: 1. 1/2N2 (g) + O2 (g) → NO2 (g), ΔH°A  = 33.2 kJ 2. 1/2N2 (g) + 1/2O2 (g) → NO (g), ΔH°B = 90.2 kJ Calculate the enthalpy of the reaction.Express your answer with the appropriate units.

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Calculate the enthalpy of the reaction 

2NO (g) + O2 (g) → 2NO2 (g) 

given the following reactions and enthalpies of formation: 

1. 1/2N2 (g) + O2 (g) → NO2 (g), ΔH°A  = 33.2 kJ 

2. 1/2N2 (g) + 1/2O2 (g) → NO (g), ΔH°= 90.2 kJ 

Calculate the enthalpy of the reaction.

Express your answer with the appropriate units.


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