The chemical reaction system represented by the equation below is at equilibrium with the concentrations shown.

Question

The chemical reaction system represented by the equation below is at equilibrium with the concentrations shown. 

Cl2(g)+CO(g)⇌ COCl2(g)

[Cl2] = 1.03x10^−1 mol/L

[CO] = 1.11x10^−1 mol/L

[COCl2] = 1.17x10^−1 mol/L

Calculate the equilibrium constant, K.

a)none of these

b)102

c)0.102

d)10.2

e)1.02

Answer 1

Cl₂(g) + CO(g) <--> COCl₂(g)

Keq = [COCl₂] / [Cl₂][CO] = 1.17x10^-1 / (1.03x10^-1)(1.11x10^-1)

Keq = 10.2 (answer d)