Question

Can someone show me how to calculate liters at 800 bar?

Fort Collins, CO	Calculation	Result
Moles of H2 for your community	(8.952e-4 moles H2/day)(5 days)	0.004476 moles H2[NH5]
Liters of H2 for your community at STP	(4.476e-3mol H2)/1X(22.4L)/1mol H2=		.106624 L
Liters of H2 for your community at 800 bar
Number of railroad tanker cars to hold your compressed H2

Answer 1

You should know that at STP (1 bar, 273K) the volume of 1 mole gas is equal to 22.4 liters.

Here given liters of H₂ at 22.4⁰ C =0.106624 liters, then 0.004476 moles occupy 0.106624*0.004476 liters = 0.000477 liters.

Now apllying Boyle's law;

P₁ V₁ = P₂ V₂

P₁= 1 bar (STP)

P₂= 800 bar (given)

V₁ =0.000477 liters

So V₂= (P₁ * V₁)/ P₂

V₂ = (1 * 0.000477)/800

V₂ = 5.96 * 10^-7 liters.