Lect+17+Fall+2011 - 10/3/2011 1 Chapter 3: The Chemistry of...

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Unformatted text preview: 10/3/2011 1 Chapter 3: The Chemistry of Oct. 5/2011 Global Warming (continued) Review of Last Lecture • CO 2 and temperature data • Rate of change • Indicators for climate change? • Molecular shapes 2 How many electron groups are there in the following structure? 1. 1 group 2. 2 groups 3 2. 2 groups 3. 3 groups 4. 4 groups The dashed bond represents… 1. Bond coming out of the page (toward you) 2. Bond going into the page (away from you) 4 2. Bond going into the page (away from you) 3. Bond in the plane of the page 4. A weak bond 10/3/2011 2 From Ch. 2 : When a CFC molecule is exposed to UV energy… 1. Bonds bend 2. Bonds stretch 5 3. Bonds break 4. Bonds vibrate 5. Nothing happens Recap of Wavelengths & Energy • UV photons have _______ wavelengths and _______ energy • IR photons have _______ wavelengths and are in energy _______ in energy – IR photons ADD energy to the natural vibrations in a molecule (“excites” molecule) “Ground ‐ State” Vibrations in CO 2 •...
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This note was uploaded on 10/12/2011 for the course ACCOUNTING 221 taught by Professor Staff during the Spring '11 term at North South University.

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Lect+17+Fall+2011 - 10/3/2011 1 Chapter 3: The Chemistry of...

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