Science Fair Project Encyclopedia
Relative pressure
Relative pressure is pressure as compared to atmospheric pressure, or the average pressure of air and Earth's sea level-- 101.325 KPa, or 1 atm. Therefore, the relative pressure of ambient air at sea level is usually close to zero.
A total vacuum, with absolute pressure of zero, would have relative pressure of -1 atm. Likewise, a gas at absolute pressure of 10 atm would have a relative pressure of 9 atm.
Last updated: 05-28-2005 02:37:21
10-26-2009 08:16:03
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details