Given the number of air molecules at z = 20 km as 1.7*1018 molecules/cm3 and  z=25 km as 8.7*1017 molecules/cm3 at a temperature of 288K. calculate the mixing ratio of ozone in ppm at 20 km and 25 km using the values of ozone concentration in molecules/cm3 (left side of Figure 2.6). State any assumptions you are making.

Sustainable Energy
2nd Edition
ISBN:9781337551663
Author:DUNLAP, Richard A.
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Chapter9: Electricity From Solar Energy
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Given the number of air molecules at z = 20 km as 1.7*1018 molecules/cm3 and  z=25 km as 8.7*1017 molecules/cm3 at a temperature of 288K. calculate the mixing ratio of ozone in ppm at 20 km and 25 km using the values of ozone concentration in molecules/cm3 (left side of Figure 2.6). State any assumptions you are making.

 

Ozone Concentration
Ozone Mixing Ratio
60
50
40
30
ㅇ
1
3
4
5 0
4
8
10
O3, 1012 cm-3
Og, ppm
IGURE 2.6 Stratospheric ozone profile over Northern Hemisphere midlatitude (35° N)
n September 1996 as measured by satellite with the Jet Propulsion Laboratory FTIR
Fourier transform infrared) spectrometer. Note that molecular concentration and
nixing ratio peak at different altitudes.
Altitude, km
20
Transcribed Image Text:Ozone Concentration Ozone Mixing Ratio 60 50 40 30 ㅇ 1 3 4 5 0 4 8 10 O3, 1012 cm-3 Og, ppm IGURE 2.6 Stratospheric ozone profile over Northern Hemisphere midlatitude (35° N) n September 1996 as measured by satellite with the Jet Propulsion Laboratory FTIR Fourier transform infrared) spectrometer. Note that molecular concentration and nixing ratio peak at different altitudes. Altitude, km 20
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