The equilibrium constant for the reaction below is 0. 18 at 25oC.

The equilibrium constant for the reaction below is 0. 18 at 25oC. PCl3(g) + Cl2(g)PCl5(g)The following concentrations were measured from the reaction vessel: (4 marks)[PCl3(g)] = 0. 0420[Cl2(g)] = 0. 0240[PCl5(g)] = 0. 00500Is this system in equilibrium? Explain. If not, in which direction will the system shift?Write the Solubility Product Constant (Ksp) expression for the following solution at 275oC. (2 marks)MgF2(s)Mg2+(aq) + 2 F-(aq)Given the solubility of MgF2(s)is 8. 4 x 10-7M, calculate the value of Kspfor the reaction shown in question #2 at 275oC. (3 marks)