Kinetic Theory of Gases
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16 Terms
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Kinetic
motion
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The Kinetic Theory of Matter
all particles of matter are in constant motion
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Gas
“chaos”
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Gases are made up of tiny particles of negligible volume (insignificant, very small).
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Gas particles move very fast (thousands of km an hour!).
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All collisions between gas particles are elastic, meaning that they do not stick together.
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Gas Pressure
caused by the collisions of gas particles with each other and the walls of their container.
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More collisions will result if…
* There are more particles in a particular space.
* As temperature increases, pressure will increase, because particles are colliding with each other and the walls of the container more frequently.
* As temperature increases, pressure will increase, because particles are colliding with each other and the walls of the container more frequently.
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Vacuum
a region of space where no gas pressure is exerted
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Atmospheric pressure (atm)
the pressure caused by the air in our atmosphere
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As altitude increases, atmospheric pressure _______
decreases
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Standard Pressure
the average pressure as measured at sea level
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Atmosphere
1 atm
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Millimeters of mmHg
760 mmHg
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Kilopascal
101\.3 kPa
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Barometer
a scientific instrument used to measure atmospheric pressure, also called barometric pressure
Note 
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