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Pressure

Pressure. A Gas. Uniformly fills any container. Mixes completely with any other gas Exerts pressure on its surroundings. Kinetic Molecular Theory. 1. Volume of individual particles is  zero. 2. Collisions of particles with container walls cause pressure exerted by gas.

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Pressure

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  1. Pressure

  2. A Gas • Uniformly fills any container. • Mixes completely with any other gas • Exerts pressure on its surroundings.

  3. Kinetic Molecular Theory 1. Volume of individual particles is  zero. 2. Collisions of particles with container walls cause pressure exerted by gas.

  4. Kinetic Molecular Theory 3. Particles exert no forces on each other. 4. Average kinetic energy Kelvin temperature of a gas.

  5. Pressure • is equal to force/unit area • SI units = Newton/meter2 = 1 Pascal (Pa)

  6. Standard Pressure • 1 standard atmosphere = 1 atm=101,325 Pa = 760 mm Hg = 760 torr

  7. Pressure Measurement

  8. Pressure Measurement

  9. What is a pressure of 3 atm equal to in mm Hg? In torr? In kPa?

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