The equilibrium constant, Kc, for the following reaction is 1.20x102 at 500 K. PCI5(g) PCI3(g) + Cl2(g) Calculate the equilibrium concentrations of reactant and products when 0.276 moles of PCI5(g) are introduced into a 1.00 L vessel at 500 K. [PCI5] = M [PCI3] = M [C2] M

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