Consider a reaction A2(g) + B2(g) 2 AB(g), with atoms of A shown in red in the

Question:

Consider a reaction A2(g) + B2(g) ‡† 2 AB(g), with atoms of A shown in red in the diagram and atoms of B shown in blue.
(a) If Kc = 1, which box represents the system at equilibrium?
(b) What is the sign of Î”G for any process in which the contents of a reaction vessel move to equilibrium?
(c) Rank the boxes in order of increasing magnitude of Î”G for the reaction.