Difference between revisions of "Pressure"
Jump to navigation
Jump to search
Andymiller (talk | contribs) (revert vandalism) |
(extra example) |
||
| Line 6: | Line 6: | ||
*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]] | ||
| − | SI | + | 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== | ||
Revision as of 01:25, January 9, 2009
Pressure is defined as the force per unit area exerted on a surface.[1]
English 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