Density of compressed oxygen gas in the cylinder

Submitted by MichMaganda on

A cylindrical gas bottle has internal dimensions of 18cm in diameter and 49cm in height. It is designed to contain compressed oxygen gas. The bottle has a mass of 1.75kg when empty and 3.15kg when full of oxygen gas. What is the density of the oxygen gas in a full bottle in kg/m^3?

Jhun Vert Sun, 05/10/2015 - 07:59

Volume of oxygen gas
V=14π(18100)2(49100)=0.003969π  m3
 

Mass of oxygen gas
m=3.15−1.75=1.4  kg
 

Density of oxygen gas
ρ=mV=1.40.003969π=112.28  kg/m3