PPT Slide

Measuring the Pressure of a Gas

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A gas exerts pressure on the walls of its container.

Pressure (P) is defined as the force exerted per unit of surface area:

Pressure = force/area

Gases of the atmosphere exert a force on all objects.

The weight of these gases creates a pressure of about 14.7 pounds per square inch (lb/in 2 ; psi) of surface

Concept 5- 2. The meaning of pressure and operation of barometers and manometers

Atmospheric pressure

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Notes:

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