Question- The equilibrium constant, Kp, for the reaction PCl5(g) ===== PCl3(g) + Cl2(g) is 1.05 at 250 C. The reaction is started with PCl5,PCl3 and Cl2 at 0.177,0.223 and 0.111 atm at 250 C. When the reaction comes to equilibrium, the pressure of PCl5 must have decreased or icreased?
I just need a general explanation of it please- Thanks!