One Dobson unit is equal to a layer of pure ozone in thickness at standard temperature and pressure.

Question

One Dobson unit is equal to a layer of pure ozone in thickness at standard temperature and pressure. (A) 1 mm (B) 0.1 mm (C) 0.01 mm (D) 0.001 mm

Tardigrade Admin · Accepted Answer

The thickness of the ozone in a column of air from the ground to the top of the atmosphere is measured in terms of Dobson units. The number of molecules of ozone required to produce a layer of pure ozone 0.01 mm thick at a pressure of 1 atmosphere and 0oC is one Dobson unit.

Q. One Dobson unit is equal to a layer of pure ozone _______ in thickness at standard temperature and pressure.

1 mm

0.1 mm

0.01 mm

0.001 mm

The thickness of the ozone in a column of air from the ground to the top of the atmosphere is measured in terms of Dobson units. The number of molecules of ozone required to produce a layer of pure ozone 0.01 mm thick at a pressure of 1 atmosphere and 0^oC is one Dobson unit.