Weight of air at 100 PSI

  • Thread starter shawn b
  • Start date
  • #1
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Some friends and I were moving a 30 gallon air compressor and after we moved it decided it would have been better to let the air out first. I would like to know how much more the tank weighs with it full of air at 100 PSI. Is there a simple formula to use to make this calculation?

Thanks so much for your help.
Shawn Boyers
 

Answers and Replies

  • #2
russ_watters
Mentor
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Well, the density of air at sea level pressure (14.7 psi) is .075 lb/ft^3 and there are 7.46 gal/ cu ft...
 
  • #3
FredGarvin
Science Advisor
5,067
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Ideal gas law...
 
  • #4
Q_Goest
Science Advisor
Homework Helper
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2 pounds :smile:
 

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