Question

A cylinder of 200 litres capicity contains a gas at 100 atmospheric pressure. How many flasks of $200c{m}^3$ capacity can be filled from it at 1 atmosphere pressure, temperature remaining constant?

Answer 1

P₁ = 100 atmos. P₂ = 1 atmos.
V₁ = 200 litres = 20 $\times$1000 ml = 200000 ml. V₂ = 200 ml
P_​1V₁ = nP₂V₂
100 $\times$ 200000 =n$\times$ 1 $\times$ 200
n =$\frac{100\times 200000}{200\times 1}$
= 10,0000 flasks