N₂(g) + 3H₂(g) → 2NH₃(g) ΔG° at 298 K for this reaction is -33.3 kJ/mol. The value of ΔG at 298 K for a reaction mixture that consists of 1.9 atm N₂, 1.6 atm H₂, and 0.65 atm NH₃ is