http://courses.washington.edu/bhrchem/c456/vdwgas.pdf
http://courses.washington.edu/bhrchem/c456/vdwgas.pdf
"When considering real gasses, this equation of state needs to be modified. It is
interesting to think about how the modification should be done. The first person to
suggest how to modify it was van der Waals. He proposed two modifications of the I.G.
equation to include molecular interactions. The first modification is to realize that
molecules take up space. This means that the accessible volume is reduced by the
amount of space each molecule takes up. The first correction to the I.G. is to try an
equation of state of the form:"
The math is way over my head ....I am practical they aint gonna make a non fire industry standard tank size for a small air rifle market dealer even in Korea
I never get the predicted amount they fill tank 4500 PSI it loses 250 PSI over night from cooling. Fill calulators dont account for fill fittings and hoses etc. I never get what they say
Remember you do this for fun ....just makes me sorta of mad that people get deceived that one is bigger than another by some mythical significant amount when between brands of tanks the the variance is negligible.
Next one get the USA one size and pricing is the same and the quality is better and it employs Americans