The equilibrium constant, K, for the following reaction is 1.87×10-2 at 511 K. PCl5(g) PCl3(g) + Cl2(g) An equilibrium mixture of the three gases in a 16.5 L container at 511 K contains 0.205 M PCl5, 6.19×10-2 M PCl3 and 6.19×10-2 M Cl2. What will be the concentrations of the three gases once equilibrium has been reestablished, if the equilibrium mixture is compressed at constant temperature to a volume of 9.75 L?