Chemistry

Chemistry

Problem

The reaction : CO+Cl2⟶COCl2\text{CO} + \text{Cl}_2 \longrightarrow \text{COCl}_2 has the following mechanism. (i) Cl2⇌K1K22Cl\text{Cl}_2 \xrightleftharpoons{K_1}{K_2} 2\text{Cl} (fast) (ii) Cl+CO⇌K1K2COCl\text{Cl} + \text{CO} \xrightleftharpoons{K_1}{K_2} \text{COCl} (fast) (iii) COCl+Cl2→K3COCl2+Cl\text{COCl} + \text{Cl}_2 \xrightarrow{K_3} \text{COCl}_2 + \text{Cl} (slow) The rate expression will be : a. r=K[CO][Cl2]r = K[\text{CO}][\text{Cl}_2] b. r=K[CO][Cl2]3/2r = K[\text{CO}][\text{Cl}_2]^{3/2} c. r=K[CO]2[Cl2]r = K[\text{CO}]^2[\text{Cl}_2] d. r=[CO]3/2[Cl2]r = [\text{CO}]^{3/2} [\text{Cl}_2]

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