Chapter 15, Problem 40QP

For the synthesis of ammonia:

${\text{N}}_{\text{2}}(g)+3{\text{H}}_2(g)\stackrel{}{\rightleftarrows }2N{H}_3(g)$

the equilibrium constant $K_c$ at $\text{375°C}$ is 1.2. Starting with ${{\text{[H}}_{\text{2}}]}_0=0.76M,{\text{ [N}}_2{\text{]}}_0=0.60M$, which gases will have increased in concentration and which will have decreased in concentration when the mixture comes to equilibrium?