Two alternative single-step syntheses are proposed for producing phosgene, COCl₂ (g)

CHEMISTRY · Subjective · AP · Chemistry · Equilibrium · Equilibrium

Problem

Two alternative single-step syntheses are proposed for producing phosgene, COCl₂ (g), at

350\,\text{K}

. • Route A: CO (g) + Cl₂ (g)

\rightleftharpoons

COCl₂ (g), K =

4.5 \times 10^2

• Route B: CO (g) + ½ O₂ (g) + Cl₂ (g)

\rightleftharpoons

COCl₂ (g) + ½ O₂ (g), K =

3.5 \times 10^{-2}

Identify which route is expected to provide the higher equilibrium yield of COCl₂ at this temperature.