Calculate Q for the equation and which way is the reaction proceeding?

Given PCl5(g) <=> PCl3 + Cl2 K=26 at 300 degrees centigrade
You have in a flask 5.0 L gaseous mixture consisting of 3 moles PCl5(g), 3 mples Pcl3, and 6 moles of Cl2 at a total pressure of 2 atm.
Calculate Q
Which way is the reaction proceeding?
Dont understand how to do this without having the o