CHEM 302 Chapter Notes - Chapter 10: Radio National, Nitric Acid, Polar Vortex
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Problems: 1 shape of the ozone layer. Consider a beam of solar radiation of wavelength l propagating downward in the vertical direction with an actinic flux i at the top of the atmosphere. Assume that o2 is the sole atmospheric absorber of this radiation: show that the o2 photolysis rate r from this radiation beam varies with altitude z as follows: R z( ) exp qs co2na 0( )i z. H s co2hna z( ) is the absorption cross-section for o2 at wavelength l where s. , q is the correspnding quantum yield for o2 photolysis, na(z) is the air density, h is the scale height of the atmosphere, and co2 is the o2 mole fraction: sketch a plot of r vs. z. Explain physically why r(z) has a maximum in the atmospheric column: 2 the chapman mechanism and steady state. We compare here some features of the chapman mechanism at 20 km and 45 km altitude.
