Difference between revisions of "Pressure"
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*[[atmosphere]]s | *[[atmosphere]]s | ||
*pounds per square inch (PSI) | *pounds per square inch (PSI) | ||
| − | *inches of mercury, which is the number of inches the given pressure will raise a column of [[mercury (element) | mercury]] | + | *inches of mercury, which is the number of inches the given pressure will raise a column of [[mercury (element)|mercury]] |
| − | The SI unit for pressure is the pascal (Pa), where 1 Pa = 1 N • m<sup> | + | The SI unit for pressure is the pascal (Pa), where 1 Pa = 1 N • m<sup>−2</sup>. One atmosphere of pressure is equal to 101,325 Pa or 14.696 psi. |
==See also== | ==See also== | ||
Latest revision as of 17:49, July 13, 2016
Pressure is defined as the force per unit area exerted on a surface.[1]
Imperial units used for air pressure include:
- atmospheres
- pounds per square inch (PSI)
- inches of mercury, which is the number of inches the given pressure will raise a column of mercury
The SI unit for pressure is the pascal (Pa), where 1 Pa = 1 N • m−2. One atmosphere of pressure is equal to 101,325 Pa or 14.696 psi.
See also
- blood pressure - typically measured in millimeters of mercury
References
- ↑ Wile, Dr. Jay L. Exploring Creation With Chemistry. Apologia Educational Ministries, Inc. 1998
