When a CFC is broken down, the chlorine generated is a free radical, which has an unpaired electron and is highly reactive. It is sometimes shown as Cl. This chlorine can react with ozone by the following reaction CI + 03 > CIO + 02 The CIO is also highly reactive and can itself react with an oxygen free radical in the atmosphere: 0 + CIO → CI + 02 After these two reactions occur, a chlorine-free radical is regenerated. What can it then do in the atmosphere? Why are chlorofluorocarbons so damaging because of this?

Chemistry
10th Edition
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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When a CFC is broken down, the chlorine generated is a free radical, which has an unpaired electron and is highly reactive. It is sometimes shown as ·Cl. This chlorine can react with ozone by the following reaction:

\[ \cdot \text{Cl} + \text{O}_3 \rightarrow \text{ClO} + \text{O}_2 \]

The ClO is also highly reactive and can itself react with an oxygen free radical in the atmosphere:

\[ \cdot \text{O} + \text{ClO} \rightarrow \cdot \text{Cl} + \text{O}_2 \]

After these two reactions occur, a chlorine-free radical is regenerated. What can it then do in the atmosphere? Why are chlorofluorocarbons so damaging because of this?
Transcribed Image Text:When a CFC is broken down, the chlorine generated is a free radical, which has an unpaired electron and is highly reactive. It is sometimes shown as ·Cl. This chlorine can react with ozone by the following reaction: \[ \cdot \text{Cl} + \text{O}_3 \rightarrow \text{ClO} + \text{O}_2 \] The ClO is also highly reactive and can itself react with an oxygen free radical in the atmosphere: \[ \cdot \text{O} + \text{ClO} \rightarrow \cdot \text{Cl} + \text{O}_2 \] After these two reactions occur, a chlorine-free radical is regenerated. What can it then do in the atmosphere? Why are chlorofluorocarbons so damaging because of this?
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