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23 Nov 2019
Atmosphere at very high altitudes
In previous work we somewhat arbitrarily considered empty space tostart at a height of 50 kilometers above the surface of theEarth.
(a) At this altitude, what is the density of the air as compared tothe density at sea-level? (Assume that the temperature at thisaltitude is 7°C, and the mass of one mole of air is 29 g.)
The density at 50 km is ?
(b) How many air molecules are there in one cubic centimeter atthis altitude?
? molecules/cm3
(c) At what altitude is the air density one-millionth (10-6) thatat sea level? (Assume that the temperature at this altitude is 7°C,and the mass of one mole of air is 29 g.)
? km
Atmosphere at very high altitudes
In previous work we somewhat arbitrarily considered empty space tostart at a height of 50 kilometers above the surface of theEarth.
(a) At this altitude, what is the density of the air as compared tothe density at sea-level? (Assume that the temperature at thisaltitude is 7°C, and the mass of one mole of air is 29 g.)
The density at 50 km is ?
(b) How many air molecules are there in one cubic centimeter atthis altitude?
? molecules/cm3
(c) At what altitude is the air density one-millionth (10-6) thatat sea level? (Assume that the temperature at this altitude is 7°C,and the mass of one mole of air is 29 g.)
? km
Beverley SmithLv2
18 Apr 2019
