AP Chemistry
5.11 Catalysis
5.9 Pre-Equilibrium Approximation
5.8 Reaction Mechanism and Rate Law
The depletion of stratospheric ozone is proposed to occur according to the two-step mechanism shown below.
\[ \text{Step 1: } \text{Cl(g)} + \text{O}_3\text{(g)} \rightleftharpoons \text{ClO(g)} + \text{O}_2\text{(g)} \quad (\text{fast equilibrium}) \]
\[ \text{Step 2: } \text{ClO(g)} + \text{O}_3\text{(g)} \rightarrow \text{Cl(g)} + 2\,\text{O}_2\text{(g)} \quad (\text{slow}) \]
Which of the following statements correctly identifies the rate law consistent with this mechanism and provides a valid justification for the role of \(\text{Cl(g)}\)?
\[ \text{Step 1: } \text{Cl(g)} + \text{O}_3\text{(g)} \rightleftharpoons \text{ClO(g)} + \text{O}_2\text{(g)} \quad (\text{fast equilibrium}) \]
\[ \text{Step 2: } \text{ClO(g)} + \text{O}_3\text{(g)} \rightarrow \text{Cl(g)} + 2\,\text{O}_2\text{(g)} \quad (\text{slow}) \]
Which of the following statements correctly identifies the rate law consistent with this mechanism and provides a valid justification for the role of \(\text{Cl(g)}\)?
Similar Questions
Tools for a 5
AP aligned mock tests to help you get a 5.
With grading, adaptive explanations, and more.
Find a Quiz
Find, solve, and grade every AP FRQ ever.
Find an FRQ
Stuck on AP Chemistry? Get unstuck with an AP specialist.1 to 1 tutors who know the exam inside out. Understand weeks of material in a single session.Book a SessionSee all our elite tutors
Learn AP Physics from scratch, quickly. This is the only course you'll need for the year.
A self-paced course with everything you need to get a 5. Trusted by over 15,000 students and 200+ schools. Learn fast, or we'll refund your purchase, backed by our 100% satisfaction guarantee.
Explore the Course