Atmospheric chemistry- Bad Boi Brain

Question 1

Give the regions of the atmosphere and their relative altitudes, also where UVA,B,C reach.

Answer 1

Thermosphere  --- Ionosphere     (85km+)
Mesosphere      ---/  (50-85 km)
Stratosphere     --- Ozone(20-30km)   (11-50km)
Troposphere (0-11km)
UVA+B= troposphere sometimes
UVC=Mesosphere

Question 2

What equation forms the Polar Stratospheric clouds?

Answer 2

ClONO2 + 4H2O -> HNO3.3H2O + HOCl

Question 3

At low T, what happens to OCl* ?

How is HNO3 formed in PSC?

Answer 3

Dimerises to ClOOCl

ClONO2 + HCl -> HNO3 + Cl2

Question 4

Why is the Antarctic springtime bad?

Answer 4

As all Cl2 made in winter are broken down and fuck shit up.

Question 5

Give the 4 reactions of the Chapman cycle:

Answer 5

O2 + hv(<240nm) –> 2O (slow)
O + O2 + M –> O3 + M* (fast)
O3 + hv(<320nm) –> O* + O2* (fast)
O3 + O –> 2O2 (slow)