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Draw a PSC ice crystal and show the reactions that take place on the ice crystal that are key to stratospheric ozone depletion. Clearly explain the reactions of importance.

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Jean Keeling
Jean KeelingLv2
28 Sep 2019

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Related questions

Halons are fluorocarbons that contain bromine, such as CBrF3. They are used extensively as foaming agents for fighting fires. Like CFCs, halons are very unreactive and ultimately can diffuse into the stratosphere. (a) Based on the data in Table 8.4, would you expect photodissociation of Br atoms to occur in the stratosphere? (b) Propose a mechanism by which the presence of halons in the stratosphere could lead to the depletion of stratospheric ozone.


Which of the following statements about the earth's atmosphere is correct?
a. The mechanism for a story in the ozone layer over Antarctica involves the formation of polar stratospheric clouds
b. The first step in formation of ozone in the stratosphere is the photoionization reaction.
c. All wavelengths of solar radiation can initiate photoionization reactions.
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e. The 'hole' in the ozone layer over Antarctica changes in magnitude and area throughout the year.
We never covered this in class. I do know that the hole changes over the year. So my guess is e. But I want to get some confirmation. Thank you!!!

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