The reaction between nitrogen dioxide and carbon monoxide is thought to occur by the mechanism 2NO₂(g) $\rightarrow$ NO₃(g) + NO(g)
K₁,slow
NO₃(g) + CO(g) $\rightarrow$ NO₂(g) + CO₂(g)
K₂,fast
The rate law for this mechanism is

Question

The reaction between nitrogen dioxide and carbon monoxide is thought to occur by the mechanism 2NO₂(g)

\rightarrow

NO₃(g) + NO(g)
K₁,slow
NO₃(g) + CO(g)

\rightarrow

NO₂(g) + CO₂(g)
K₂,fast
The rate law for this mechanism is

Quizplus · Accepted Answer

The rate law is determined by the slow step of the mechanism, which is the first step: 2NO₂ → NO₃ + NO. Therefore, the rate law is based on the concentration of NO₂, specifically [NO₂]², as two NO₂ molecules are involved in the slow step.

The Reaction Between Nitrogen Dioxide and Carbon Monoxide Is Thought →\rightarrow→

The Reaction Between Nitrogen Dioxide and Carbon Monoxide Is Thought $\rightarrow$