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19 Cards in this Set
- Front
- Back
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kinetic molecular theory
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1.a gas is composed of very small particles call ed molecules which are widley spaced and occupy negligible volume
2. the molecules fo a gas are in rapid, random motion, colliding with each other and the sides of the container. pressure is a result of these collosions 3. all collisions involving gas are elastic 4. gas molecules hace negligible attractive force 5. the temperature of a gas is trelated to the average kinetic energy of the gas molecules |
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effusion
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the movement of gases through an opening or a hole
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diffusion
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the mixing of one gas or liquid into other
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graham's law
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KE=1/2MVsquared
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barometer
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a device that measures the atmospheric pressute
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pressure
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the force per unit area
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atmosphere
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the sea of gases above the surface of earth and the average pressure of the atmosphere at sea level
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kelvin scale
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a temprature scale where 0K is the lowest possible temperature
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absolute zero
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the lowest possible temerature and the temprature that all motion ceases
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standard temperature and pressure
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the defined standart conditions for a gas which are exactly 0C and one atm
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molar volume
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the volume of one mole of gas at STP is 22.4L
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gas constant
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the constant of proportionality in the ideal gas law
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boyles law
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P1V1=P2V2
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charles law
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V1/T1=V2/T2
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gay lussac law
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P1/T1=P2/T2
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combined law
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P1V1/T1=P2V2/T2
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avogadros law
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V1/n1=V2/n2
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ideal law
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PV=nRT
in liters, atm, kelvin, and moles, R=.0821 |
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daltons law
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total pressure is the sum of the partial pressures of the gas
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