Chlorine radicals catalyze stratospheric ozone decomposition through the elementary…

CHEMISTRY · Single correct · AP · Chemistry · Kinetics · Kinetics

Problem

Chlorine radicals catalyze stratospheric ozone decomposition through the elementary steps shown below. 1. O3+Cl→ClO+O2    (slow)\mathrm{O_3 + Cl \rightarrow ClO + O_2} \;\; (\text{slow}) 2. ClO+O→Cl+O2    (fast)\mathrm{ClO + O \rightarrow Cl + O_2} \;\; (\text{fast}) Which statement about the rate law that follows from this mechanism is most accurate? (a) rate=k[O3]\text{rate}=k[\mathrm{O_3}] (b) rate=k[O3]2\text{rate}=k[\mathrm{O_3}]^{2} (c) rate=k[O3][Cl]\text{rate}=k[\mathrm{O_3}][\mathrm{Cl}] (d) rate=k[ClO][O]\text{rate}=k[\mathrm{ClO}][\mathrm{O}]

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