4. The equilibrium constant of the following reaction for the decomposition of
phosgene at 25°C is 4.282 x 10-².
COCI, (g) CO(g) + Cl₂(g)
a. What is the concentration of COCl₂ when the concentrations of both CO and
Cl₂ are 5.90 x 10-³ M?
b. When the equilibrium concentration of COC12 is 0.003 70 M, what are the
concentrations of CO and Cl₂? Assume the concentrations are equal.