Which enthalpy of formation equation produces the reaction 2NO(g) + O₂(g) → 2NO₂(g)?
A. 2N₂(g) + O₂(g) → 2N₂O(g)
B. 2N₂(g) + 2O₂(g) → 2N₂O₂(g)
C. N₂(g) + O₂(g) → 2NO(g)
D. 2N(g) + 2O₂(g) → 2N₂O₄(g)