A Proposed Mechanism for the Decomposition of Ozone in the Stratosphere

question 63

Multiple Choice

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

• A) unimolecular
• B) bimolecular
• C) termolecular
• D) zero molecular (spontaneous)
• E) More information is needed to answer this question.

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