Pressure vs Volume Left

[Nick DV]

It's believed that after Hooke's death, Isaac Newton acquired all of the portraits of Hooke, and burned them .

So Mr Newton was a nasty little $h1t then And I thought he was nice to apple trees

 

[Seadog]

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[tom2207]

Boyle’s Law states that Pressure x Volume is a constant. PV = k. Therefore P1V1 = P2V2

That means there is a little more than 3/4 left - all assuming an accurate pressure gauge and constant temperature.

If you want to delve deeper into moles and Avogadro’s number, etc the ideal gas equation is PV = NRT where N = 6.022×10^23/mol and R is the Ideal Gas Constant.

Rob got there before me. Explaining terms and emboldening things takes time!

Boyles law is one thing . Daltons law is another
but no one ever mentions Coles Law




whats coles Law ,,,


little bits of cabbage and carrot in salad cream .

 

[Ross365]

and then there's Henry's Law...I think that's the one that says that if you have a rubber hose with pure nitrogen flowing through it, at a pressure far far above atmospheric, then oxygen from the air will still diffuse in to it ... or is that Dalton's Law, and Henry's is about gases dissolving in liquids?

 

[tom2207]

Henry's law states that at a constant temperature, the amount of a gas that dissolves in a liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid. It was formulated by William Henry in 1803.
not to be confused with ideal/ perfect gas law.

so many laws and most of them are a bit guessy charles and lusac spring to mind ,,, who would be a gass blender lol ,, just buy a ybod and let it get on with it.
or go green instead and get a nice fresh Avagardo ,,,,

 

[Ross365]

Henry's law states that at a constant temperature, the amount of a gas that dissolves in a liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid. It was formulated by William Henry in 1803.
not to be confused with ideal/ perfect gas law.

so many laws and most of them are a bit guessy charles and lusac spring to mind ,,, who would be a gass blender lol ,, just buy a ybod and let it get on with it.
or go green instead and get a nice fresh Avagardo ,,,,

So, that is the law that says atmospheric oxygen will diffuse into a high pressure hose containing only nitrogen - because there is no partial pressure of O2 in there!

 

[addjunkie]

as far as I'm concerned:
160/230 x 100 = 70% full (we work with 230bar fill pressure)

It might not be a true linear progression/regression, but its as close in real life as to not matter

Its all a bit irrelevant if you leave the bottle open and go out for the day once the regulator is a bit leaky.