Quote:
Originally Posted by ard
Agree it isnt a weight thing
The pressure change stuff is false. All gasses follow the same laws. Nitrogen and oxygen will act the same/
It is because you cannot buy high pressure bottles of *air*; that nitrogen is nice and cheap and inert; that you can buy it 'technical pure' and totally moisture free.
This last part is THE key: moisture. THAT is what caused the pressure changes w temp.
And the nitrogen they sell in shops is NOT the same that race cars and airplanes use.
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N₂ is N₂ I doubt much difference. I have a pilot friend with a little bottle he uses for filling up the suspension. I'm pretty sure the bottles will all be labeled nitrogen.
Race cars may insist on some unimportant purity like 99.99 vs. just 99.