For which reaction below does the enthalpy change under standard conditions correspond to a standard enthalpy of formation? O a. CO(g) + H2O(g) → CO2(g) + Hạ(g) O b. CH4(g) + 202(g) → CO₂(g) + 2H₂O(g) - O c. SO₂(g) + y O2(g) → SO3(g) O d. O e. H₂(g) + N₂(g) + 302(g) → 2HNO3(g) y N₂(g) + O2(g) → NO2(g)

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