(Solved): A 0.750 M sample of phosphorus pentachloride decomposes to give phosphorus trichloride and chlorine ...

A 0.750 M sample of phosphorus pentachloride decomposes to give phosphorus trichloride and chlorine gases. If the equilibrium concentration of PCI5 is 0.650M, what is the equilibrium constant for the reaction? PC15(8) PC13(g) + Cl2(g) A) Keq = 65.0 B) Keq = 0.0133 OC) Keq = 0.0154 D) Keq = 0.154 E) Keq = 0.133