Which reaction has the largest AS°?
O 2NO(g) → N₂O₂(g)
O O₂(g) + 2H₂(g) → 2H₂O(g)
O N₂(g) + 3H₂(g) → 2NH3(g)
O 2N₂H4(8)→ 2NH3(g) + H₂(g)
O O₂(g) + 2H₂(g) → 2H₂O(l)