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Old 10-04-2012, 08:30 PM   #53
SeanC
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Join Date: May 2007
Location: TX
Posts: 4,053
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Quote:
Originally Posted by WDE46 View Post
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.


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