The equilibrium CO(g)+Cl_2(g) COCl_2(g) is established at 600 K with

CHEMISTRY · Subjective · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)

Problem

The equilibrium CO(g)+Cl2(g)⇌COCl2(g)CO(g)+Cl_2(g)\rightleftharpoons COCl_2(g) is established at 600 K with Kc=1.2×103K_c = 1.2\times10^3. At equilibrium, the concentrations are [CO]=0.030 M[CO]=0.030\,\text{M}, [Cl2]=0.025 M[Cl_2]=0.025\,\text{M}, and [COCl2]=0.90 M[COCl_2]=0.90\,\text{M}. If 0.20 mol of COCl2COCl_2 is suddenly removed from the 1.0 L reaction vessel, state the direction in which the reaction will subsequently shift and identify whether the concentrations of COCO and Cl2Cl_2 will rise, fall, or remain unchanged as the system re-establishes equilibrium.

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