Pressure Conversions Between Different Units Of Pressure

Pressure & Conversions Between Different Units of Pressure

Gas Pressure • Pressure is the result of the collisions of the gas particles with the sides of its container • --It is the force exerted over an area • Existence of Air Pressure = • Soda cans, Balloon in a bottle

Measuring Atmospheric Pressure • The Barometer is used to measure air pressure • Air pressure is measured by determining the height of a column of mercury which can be supported by air

Units of Pressure (Are Many) • mmHg • in Hg • Atmospheres or atm • Lbs/in2 • Kilopascals or kPa • Torr

Pressure Conversion Factors • 1 atm = • 760 mm Hg = • 29.9 in Hg = • 14.7 lbs/in2 = • 101.3 kPa = • 760 torr = • 1.01 bar = • 1013 millibar

STP • When working with gases standard conditions = • Temperature of 0oC • Pressure of : • 760 mmHg or • 1 atm or • 101.3 kPa