Can any one tell me what is the volume of the oxygen around our planet earth ??

Question

Can any one tell me what is the volume of the oxygen around our planet earth ??

Answer 1

20.95% oxygen  

more here !

http://en.wikipedia.org/wiki/Earth's_atm...

Answer 2

Well, the percentage of O2 in our atmosphere is about 20%.  (I've seen figured ranging from 18% to 21%).

If you can find a source for the total volume of atmosphere, then it's an easy calculation.

Answer 3

It's hard to figure the total volume because the air pressure gradually tapers off to zero somewhere between 20 and 100 km altitude. It's much easier to estimate the total weight. I'll do that, ignoring the volume of the landmass.

Earth's mean radius is 6,371.0 km, so the surface area is 6,371^2 times 4π = 5.1x10^14 meter^2. Sea level pressure = 101.3 kPa. So the total weight of the atmosphere is 5.15 x 10^19 Newton.

Oxygen accounts for 23.1 of the atmosphere's mass. So the total weight of oxygen in the atmosphere is 1.19 x 10^19 Newton. The density of pure oxygen at one atmosphere of pressure is about 1.98 kg/meter^3. So, if all of Earth's atmospheric oxygen were held at one atmosphere of pressure, it's volume would be about 1.19/1.98 x 10^19 meter^3 = 6.01 x 10^18 meter^3 (minus the volume of the continents).

Answer 4

Oxygen (O2) 209,460 ppmv (20.946%)

Answer 5

Use the volume of a sphere as an approximation.

Vearth ( Volume of earth) = 4/3πr^3

use r = 6,356.750 km  and then subtract this amount from 6.356 + 40km ( for the atmosphere), then you would get some value of km^3 and take maybe 20% of that value.