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15 Cards in this Set
- Front
- Back
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Solid |
Atoms held tightly together, definite shape and volume |
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Liquids |
Atoms have weaker connections with each other, definite volume and variable shape |
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Gas |
Minimal atom interactions, Variable shape and volume |
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Properties of Gas: |
- Can be compressed - Can exert pressure - mixture is homogeneous - Velocity is inverse to molar mass |
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Effusion |
Movement of gas moleculesthrough pin holes from higher pressurespace to lower pressure
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Why do smaller molecules move faster? |
Larger molecules need more energy to move them around |
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Average Velocity |
The probable speed most gas molecules have |
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Kinetic Molecular Theory of Gases
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Particles are in constant motion, exert no force on each other, they do not interact and have little volume |
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How does atmosphere pressure change with altitude? |
The higher you go the less the mass of the atmosphere pushes on you since there are less molecules above |
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Manometer |
device to measure pressure in a glass container |
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4 variables of Gas: |
- Volume - Temperature - Pressure - Moles |
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Boyles Law |
P1V1=P2V2 At constant temperature Pressure and volume are inversely related |
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Charles Law |
V1 = V2 T1 T2 When Volume is constant Temperature and volume have a direct relationship |
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Avogadros Law |
V1 = V2 n1 n2 Equal volumes at constant temperature and pressure have the same number of particles |
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Ideal Gas Law |
PV=nRT |
