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      01-16-2012, 03:58 PM   #171
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Quote:
Originally Posted by Tzu View Post
Ideal gas law is only an approximation of air and isnt very applicable as temperatures and pressures change dynamicly and drastically.

Also, volume of the cylinder remains the same, but not the volume of air being forced into the cylinder.
You mean mass. The volume in the cylinder can't change. Only the pressure and temp (air mass).