(a) Calculate the reaction Gibbs free energy of N₂(g)+ 3 H₂(g) → 2 NH₃(g) when the partial pressures of N₂, H₂, and NH₃ are 4.2 bar, 1.8 bar, and 21 bar, respectively, and the temperature is 400. K. For this reaction, K = 41 at 400. K.

(b) Indicate whether this reaction mixture is likely to form reactants, is likely to form products, or is at equilibrium.