Calculate $\Delta$ H_rxn° for the Reaction
N₂(g) + O₂(g) $\rightarrow$ 2 NO(g)
from the Enthalpies of the Following Reactions

Multiple Choice

Calculate $\Delta$ H_rxn° for the reaction
N₂(g) + O₂(g) $\rightarrow$ 2 NO(g)
From the enthalpies of the following reactions.
N₂(g) + 2 O₂(g) $\rightarrow$ 2 NO₂(g)   $\Delta$ H_rxn° = 66.4 kJ/mol_rxn
2 NO(g) + O₂(g) $\rightarrow$ 2 NO₂(g)   $\Delta$ H_rxn° = -114.2 kJ/mol_rxn

A) -180.6 kJ/mol_rxn
B) -47.8 kJ/mol_rxn
C) 47.8 kJ/mol_rxn
D) 180.6 kJ/mol_rxn
E) $\Delta$ H_rxn° is impossible to calculate from the information given