1 / 8

Photochemistry: Ozone Formation and Depletion

Photochemistry: Ozone Formation and Depletion. Nick Buker. Relationship between Wavelength and Energy. Spectroscopy and Photochemistry. Spectroscopy – The study of the interaction between light and matter. Photochemistry – The study of chemical reactions initiated or driven by light.

ivory
Download Presentation

Photochemistry: Ozone Formation and Depletion

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Photochemistry:Ozone Formation and Depletion Nick Buker

  2. Relationship between Wavelength and Energy Created by Nick Buker 4/18/13

  3. Spectroscopy and Photochemistry Spectroscopy – The study of the interaction between light and matter. Photochemistry – The study of chemical reactions initiated or driven by light. Created by Nick Buker 4/18/13

  4. Light-induced Bond Breakage • Breaking bonds requires energy and forming bonds releases energy • Light can break bonds and initiate chemical reactions • If O=O bond energy is approximately 498kJ/mol, what is the maximum wavelength of light capable of breaking this bond in nm? Created by Nick Buker 4/18/13

  5. Calculations (Ultraviolet) Created by Nick Buker 4/18/13

  6. Mechanism of Ozone formation in the Upper Atmosphere Created by Nick Buker 4/18/13

  7. Chlorofluorocarbons • Dipole-dipole attractions allow CFC’s to liquify at moderate pressure • Used as propellants and refrigerants • Peak global production exceeded 1 million metric tons annually Created by Nick Buker 4/18/13

  8. Destruction of Ozone by Chlorofluorocarbons Created by Nick Buker 4/18/13

More Related