Chapter 14, Problem 14.41CP

The reaction ${\text{A}}_{\text{2}}\text{+B}\rightleftarrows \text{A+AB}$ has an equilibrium constant ${\text{K}}_{\text{C}}=2$ . The following pictures represent reaction mixtures thatcontain A atoms (red), B atoms (blue), and A₂ and AB molecules:

(a) Which reaction mixture is at equilibrium?

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