Difference between revisions of "Pressure"
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(unit of pressure: an "atmosphere" - not that common, really) |
(units used for air pressure) |
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The force per unit area exerted on a surface.<ref>Wile, Dr. Jay L. ''Exploring Creation With Chemistry''. Apologia Educational Ministries, Inc. 1998</ref> | The force per unit area exerted on a surface.<ref>Wile, Dr. Jay L. ''Exploring Creation With Chemistry''. Apologia Educational Ministries, Inc. 1998</ref> | ||
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| + | English units used for air pressure include: | ||
| + | *pounds per square inch | ||
| + | *inches of of mercury | ||
| + | |||
| + | ==See also== | ||
| + | |||
| + | *[[blood pressure]] - measured in millimeters of mercury | ||
The term ''atmosphere'' has sometimes been used by [[Chemistry|Chemists]] and [[Physics|Physicists]] as a unit of [[pressure]]. Example: one atmosphere of pressure is the pressure exerted on objects by the atmospheric [[gas]]ses, [[air]] (principally 21% [[oxygen]] and 79% [[nitrogen]]), at sea level of approximately 14.7 pounds per inch square. | The term ''atmosphere'' has sometimes been used by [[Chemistry|Chemists]] and [[Physics|Physicists]] as a unit of [[pressure]]. Example: one atmosphere of pressure is the pressure exerted on objects by the atmospheric [[gas]]ses, [[air]] (principally 21% [[oxygen]] and 79% [[nitrogen]]), at sea level of approximately 14.7 pounds per inch square. | ||
Revision as of 17:46, June 25, 2007
The force per unit area exerted on a surface.[1]
English units used for air pressure include:
- pounds per square inch
- inches of of mercury
See also
- blood pressure - measured in millimeters of mercury
The term atmosphere has sometimes been used by Chemists and Physicists as a unit of pressure. Example: one atmosphere of pressure is the pressure exerted on objects by the atmospheric gasses, air (principally 21% oxygen and 79% nitrogen), at sea level of approximately 14.7 pounds per inch square.
References
- ↑ Wile, Dr. Jay L. Exploring Creation With Chemistry. Apologia Educational Ministries, Inc. 1998