How many cubic meters is one oxygen bottle

How many cubic meters is one oxygen bottle


A 40 liter oxygen cylinder can hold about 32 cubic meters of oxygen at a standard atmospheric pressure. In reality, it is impossible to release all the oxygen in the cylinder. There must be a certain pressure inside, which can release about 25-28 cubic meters



How much oxygen does 400 cubic meters of air contain?


Oxygen accounts for about 21% of the air
So 400 cubic meters of air contains about 84 cubic meters of oxygen



The volume ratio of oxygen and other gases in the air is 21:9.1320 cubic meters. How many cubic meters of oxygen are there in the air?


The volume ratio of oxygen to other gases in the air is 21:9
Is this condition wrong? It should be 21-79
So the correct answer is 1320 x 21 / 100 = 277.2m & # 179;