446_01c_test4 - most applicable and why E 0.1 2 3 4 5 6 7...

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METR 446 Test # 4 Name: December 7, 2001 1) (10 pts) Describe in words what flux transmittance is. 2) (5 pts) To derive an expression for the equilibrium ozone number density, we assumed that some of the reactions taking place in the stratosphere were much faster than others. Which of the following reactions did we assume proceeded very quickly, and which did we assume were relatively slow? O + O 2 + M Æ O 3 + M (a) O 3 + O Æ 2O 2 (b) O 2 + h ν Æ 2O (c) O 3 + h ν Æ O 2 + O (d) 3) (10 pts) At what time of year is the stratospheric “ozone hole” over Antarctica most pronounced, and why?
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