The volume of Oxygen : 20,000 L
Given
400 L : initial volume
150 atm : initial pressure
3 atm : final pressure
Required
Final volume
Solution
Boyle's Law
At a fixed temperature, the gas volume is inversely proportional to the pressure applied
[tex]\rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}[/tex]
Input the value :
V₂ = (P₁V₁)/P₂
V₂ = 150 atm x 400 L / 3 atm
V₂ = 20,000 L