Registered User
Join Date: May 2007
Location: TX
Posts: 4,085
My Ride: 330i

Quote:
Originally Posted by WDE46
I don't know where you got this number. Did you assume a 1 atm starting point at 25C for this and calculate the change in pressure given the same volume but higher temperature?
I mean did you do: P1/T1 = P2/T2

I used ideal gas law: PV=nRT. V is the volume, n is the amount of air that occupies the V. R is the gas constant, and T is temperature. Air is an ideal gas.
One also needs to know that 1 mole of gas occupies 22.4 L of space. No need to assume a starting point. Just plug in the numbers and solve for P.
Sent from my SGHI997 using Bimmer App
__________________
Black Sapphire MetallicNatural BrownSilver Cube e46 330i ZHP/6MT  Sold
HellrotDove Grey e36 ///M3  RIP
Alpine WhiteTanSand High Gloss e46 330i SlickTop/5MT  Sold
Black Sapphire MetallicNevada BrownDark Bamboo e70 X5 xDrive4.8
Alpine WhiteCoral RedAluminum f30 328i Sportline/6MT
