Applications of Equilibrium Constants (Section)
At 100 °C, the equilibrium constant for the reaction COCl2(g) ⇌ CO(g) + Cl2(g) has the value Kc = 2.19 × 10–10. Are the following mixtures of COCl2, CO, and Cl2 at 100 °C at equilibrium? If not, indicate the direction that the reaction must proceed to achieve equilibrium.
(a) [COCl2] = 2.00 × 10–3 M, [CO] = 3.3 × 10–6 M, [Cl2] = 6.62 × 10–6 M
(b) [COCl2] = 4.50 × 10–2 M, [CO] = 1.1 × 10–7 M, [Cl2] = 2.25 × 10–6 M
(c) [COCl2] = 0.0100 M, [CO] = [Cl2] = 1.48 × 10–6 M
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