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Phosphorus pentachloride decomposes to phosphorus trichloride at high temperatures according to the equation: PCl5(g) ⇌ PCl3(g) + Cl2(g) At 250° 0.250 M PCl5 is added to the flask. If Kc = 1.80, what are the equilibrium concentrations of each gas? A) [PCl5] = 1.80 M, [PCl3] = 1.80 M, and [Cl2] = 1.80 M B) [PCl5] = 0.0280 M, [PCl3] = 0.222 M, and [Cl2] = 0.222 M C) [PCl5] = 0.125 M, [PCl3] = 0.474 M, and [Cl2] = 0.474 M D) [PCl5] = 2.27 M, [PCl3] = 2.02 M, and [Cl2] = 2.02 M