Chapter 13, Problem 76E

Assume that the change in concentration of COCI₂ is small enough to be neglected in the following problem.

(a) Calculate the equilibrium concentration of all species in an equilibrium mixture that results from the decomposition of COCl₂ with an initial concentration of 0.3166 M.

${\text{COCI}}_2\left(g\right)\rightleftharpoons \text{CO}\left(g\right)+{\text{CI}}_2\left(g\right)$ $K_c=2.2\times {10}^{-10}$

(b) Show that the change is small enough to be neglected.