A Proposed Mechanism for the Decomposition of Ozone in the Stratosphere

question 134

Multiple Choice

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) + 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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Definitions:

Middle Childhood

A developmental stage typically covering the period from about 6 to 12 years old, where children experience major growth in cognitive, physical, and social skills.

Static Reasoning

A characteristic of preoperational thought in which a young child thinks that nothing changes. Whatever is now has always been and always will be.

Concrete Operational

A stage of cognitive development in children, proposed by Piaget, occurring roughly between the ages of 7 and 12, during which children gain a better understanding of mental operations and physical concepts.

Middle Childhood

The developmental stage between early childhood and adolescence, typically from ages 6 to 12, marked by increased cognitive, social, and emotional development.