# Is this reaction at equilibrium?

The following equilibrium occurs:

$$\ce{2 NOCl(g) <=> 2 NO(g) + Cl2(g)}$$

A gaseous mixture of $\ce{NOCl}$, $\ce{NO}$ and $\ce{Cl2}$ is put in a container. After a few minutes it is found that two moles of $\ce{NOCl}$ react for every three moles of products which react. Is the mixture at equilibrium? Why? In other words, how does the mole ratio relate to whether or not the reaction is at equilibrium? Thanks.