Question

The rate law for the chemical reaction,

\[\ce{2NO2Cl -> 2NO2 + Cl2}\], is Rate = k [NO₂Cl].

The rate determining step is:

Options

• \[\ce{2NO2Cl -> 2NO2 + Cl2}\]

• \[\ce{NO2 + Cl2 -> NO2Cl + Cl}\]

• \[\ce{NO2Cl + Cl -> NO2 + Cl2}\]

• \[\ce{NO2Cl -> NO2Cl}\]

Answer 1

\[\ce{NO2Cl -> NO2Cl}\]

Explanation:

The given reaction is 

\[\ce{2NO2Cl -> 2NO2 + Cl2}\]

The rate law is

Rate = k [NO₂Cl]

This tells us the reaction is first order with respect to NO₂Cl, meaning the rate-determining step involves only one molecule of NO₂Cl.