Pressure
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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
SI units for pressure are Pascals, where <math> 1 Pa = 1 {N \over m^2} </math>
See also
- blood pressure - typically measured in millimeters of mercury
References
- â Wile, Dr. Jay L. Exploring Creation With Chemistry. Apologia Educational Ministries, Inc. 1998