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but you can toss the R, it's irrelevant
Posted by AeroEd [Email] (more from AeroEd) on Mon, 26 Jan 2015 10:00:49
In Reply to: Re: PV=nRT, Snowmobile [Profile/Gallery]
, Mon, 26 Jan 2015 09:50:18
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All we're doing is calculating a pressure change.
"n" and "R" remain constant (I.e.,"n" remains constant and "R" is a constant).
The formula to start with is P2/P1 = T2/T1.
and P2 = P1*(T2/T1).
We also don't have to use Kelvin for this exercise, I used Rankine.
I had previously read in articles 48F during the first half, I haven't tried to verify.
IF I use 70F for T1 and 45F for T2, with 12.5 psi (27.2 psi absolute), I get P2 = 11.2 psi.
Everybody (outside of NE) know that the Patriots are cheaters, but even the most ardent Colts fan (okay, perhaps me) realize that the Colts were whupped.
Ed
2007 9-5 Aero SC [60th]
2004 9-3 Aero
2005 9-5 Aero
2005 9-5 Arc
2002 9-5 Aero SW (my 1st SAAB, bought new, but taken out by Bambi)
1999 9-5 SE(6) SW (brief interim between the '02 and the '07)
1999 9-5 SE(4) (taken out by daughter on icy road)
->Posting last edited on Mon, 26 Jan 2015 17:31:24.
Posts in this Thread:
- Deflated Footballs, No Snaab, Sun, 25 Jan 2015 05:05:05
- Hello, NFL, anybody home?, AeroEd, Fri, 30 Jan 2015 09:41:52
- Much ado about nothing, EGD , Mon, 26 Jan 2015 01:56:20
- Me too, SWEDECAR , Sun, 25 Jan 2015 13:21:28
- Re: Me too, Snowmobile , Sun, 25 Jan 2015 14:04:41
- My questions too, and why I no longer watch...., MI-Roger , Sun, 25 Jan 2015 05:31:45
- Re: My questions too, and why I no longer watch...., dtechakacheaptech, Mon, 26 Jan 2015 10:13:46
- Re: My questions too, and why I no longer watch...., AdamSAAB2kAero , Sun, 25 Jan 2015 14:56:50
- It may all come down to the change of temperature, Ron, Sun, 25 Jan 2015 08:02:17
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