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The Barometer Approximation of Absolute Pressure (Any Gravity) calculator computes the absolute pressure based on the density (ρ), height (h) and the acceleration due to gravity (g).
INSTRUCTIONS: Choose units and enter the following:
- (ρ) Density of gas
- (g) Acceleration due to gravity.
- (h) Height of the column
Absolute Pressure (Pa): The calculator returns the pressure in millimeters of mercury. However this can be automatically converted to compatible units via the pull-down menu.
The Absolute Pressure with Barometer Approximation equation calculates the absolute pressure on mercury barometer.
Reference
Young, Hugh and Freeman, Roger. University Physics With Modern Physics. Addison-Wesley, 2008. 12th Edition, (ISBN-13: 978-0321500625 ISBN-10: 0321500628 ) Pg 462, eq 14.9
