Chapter 14, Problem 14.16A

Conceptual APPLY 14.16 The reaction A₂ + B₂ $\rightleftarrows$ 2 ABhas an equilibrium constant K_C = 4. The following pictures represent reaction mixtures that contain A₂ molecules (red), B₂ molecules (blue), and AB molecules:

(a) Which reaction mixture is at equilibrium?

(b) For those reaction mixtures that are not at equilibrium, will the net reaction go in the forward or reverse direction to reachequilibrium?