Chemistry

Chemistry

Problem

Mechanism of the reaction 2NO+Cl2→2NOCl2\text{NO} + \text{Cl}_2 \rightarrow 2\text{NOCl} may be written as 2NO⇌kk′(NO)2…………(fast)2\text{NO} \underset{k'}{\overset{k}{\rightleftharpoons}} (\text{NO})_2 \quad \dots\dots\dots\dots \text{(fast)} (NO)2+Cl2→k2NOCl…………(slow)(\text{NO})_2 + \text{Cl}_2 \xrightarrow{k} 2\text{NOCl} \quad \dots\dots\dots\dots \text{(slow)} Rate equation would be (A) kK[(NO)2][Cl2]kK[(\text{NO})_2][\text{Cl}_2] (B) kK[NO]2[Cl2]kK[\text{NO}]^2[\text{Cl}_2] (C) kK[Cl2]kK[\text{Cl}_2] (D) kK[NO][Cl2]kK[\text{NO}][\text{Cl}_2]

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