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Published byKristina James Modified over 9 years ago
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Pressure!
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Pressure Defined Force per unit area Force is a push or pull Units of force are Newtons P = F/a Measured with a barometer
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Barometers Mercury barometer Anaeroid barometer
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Units of Pressure Millimeters of mercury Mercury rises 760 mm at sea level Torricelli (Torr) units are the same size Atmospheric pressure Pressure at sea level is 1 atmo Pascal 1 N/ 1 m 2
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Standard Temperature and Pressure STP Exactly 1 atmo and 0 o C Gases commonly measured at this standard T and P condition
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Sample Problem 10-1 The average atmospheric pressure in Denver, Colorado is 0.830 atmo. Express this in: mm Hg kPa
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