A proposed mechanism for the decomposition of ozone in the stratosphere is: Step 1: Cl(g) + O₃(g) $\rightarrow$ ClO(g) + O₂(g)
Step 2: ClO(g) + O₃(g) $\rightarrow$ Cl(g) + 2O₂(g)
What is the molecularity of Step 1?

Question

A proposed mechanism for the decomposition of ozone in the stratosphere is: Step 1: Cl(g) + O₃(g)

\rightarrow

ClO(g) + O₂(g)
Step 2: ClO(g) + O₃(g)

\rightarrow

Cl(g) + 2O₂(g)
What is the molecularity of Step 1?

Quizplus · Accepted Answer

The molecularity of a reaction refers to the number of particles involved in the rate-determining step. In this case, Step 1 involves a collision between one Cl molecule and one O3 molecule, so it is a bimolecular reaction.

A Proposed Mechanism for the Decomposition of Ozone in the Stratosphere