The equilibrium constant, K, for the following reaction is 2.74 at 1.15E3K. 2SO3(g)2SO2(g)+O2(g) If an equilibrium mixture of the three gases in a 19.9L container at 1.15EBK contains 0.219mol of SO3(g) and 0.458mol of SO2, the equilibrium concentration of O2 is M. Consider the following reaction: PCl5(g)PCl3(g)+Cl2(g) If 5.87E-3 MPCl5(g),5.22E2MPCl3, and 4.07E-2 MCl2 are at equilibrium in a 12.1L container at 602K, the value of the equilibrium constant, K, is