The reaction below was carried out at 503 K in a 5.00 L vessel. At equilibrium, the reaction vessel contained 0.0185 mol of PClb, 0.0158 mol of PCIS, and 0.0870 mol of Clz. Calculate the value of Kc at this temperature. Reaction: PCI3 (g) + Cl2 (g) → PCI (g)

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