What function does a third body serve in an atmospheric chemical reaction? (b) What two chemical species are most generally responsible for the removal of hydroxyl radical from the unpolluted troposphere. (c) What is the settling velocity of a particle having a Stokes diameter of 10 μm and a density of 1 g/cm3 in the air at 1.00 atm pressure and 0°C temperature? (The viscosity of air at 0°C is 170.8 micropoise. The density of air under these conditions is 1.29 g/L.). [1 micropoise (µP) = 1×10-7 Pa.s; g/L = kg/m3] (d) Why is it that “highest levels of carbon monoxide tend to occur in congested urban areas at times when the maximum number of people are exposed?”
(a) What function does a third body serve in an atmospheric
(b) What two chemical species are most generally responsible for the removal of hydroxyl
radical from the unpolluted troposphere.
(c) What is the settling velocity of a particle having a Stokes diameter of 10 μm and a density of
1 g/cm3 in the air at 1.00 atm pressure and 0°C temperature? (The viscosity of air at 0°C is
170.8 micropoise. The density of air under these conditions is 1.29 g/L.).
[1 micropoise (µP) = 1×10-7 Pa.s; g/L = kg/m3]
(d) Why is it that “highest levels of carbon monoxide tend to occur in congested urban areas at
times when the maximum number of people are exposed?”
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