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7 Cards in this Set
- Front
- Back
Describe a solid |
-Strong forces of attraction between particles -Have a fixed pattern (lattice) -Atoms vibrate but can't change position therefore fixed volume and shape. |
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Describe a liquid |
-Weaker attractive forces than solids -No fixed pattern, liquids take up the shape of their container but have a fixed volume -Particles slide past each other |
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Describe a gas |
-Almost no intermolecular forces -Particles are far apart, and move quickly -They collide with each other and bounce in all directions |
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Describe diffusion |
The process in which particles mix/spread by colliding randomly with each other, and bouncing off in all directions. |
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Evidence for diffusion in liquids |
Potassium Manganate (Vll) in a beaker of water. |
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Evidence for diffusion in gases |
A gas jar of air and a gas jar of bromine are connected, the bromine travels up the tube. |
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Factors that affect the rate of diffusion |
-Temperature increases -> rate of diffusion increases. -Particle mass decreases -> rate of diffusion increases . -Dissolving can be sped up by stirring. |