Term
| What are the properties of liquids? |
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Definition
- The intermolecular attractive forces are strong enough to hold molecules close together
- Liquids are more dense and less compressible than gasses
- Liquids have a definite volume, independent of the size and shape of their container
- The attractive forces are not strong enough, however, to keep neighboring molecules in a fixed position and molecules are free to move past or slide over one another
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Term
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Definition
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The erratic random movement of microscopic particles in a fluid, as a result of continuous bombardment from molecules of the surrounding medium.
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Term
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Definition
| A measure of average kinetic energy of molecules- heating increases this. |
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Term
| Difference between boiling and evaporation |
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Definition
Boiling- occurs at a fixed temp, occurs throughout the liquid
Evaporation- occurs over a range on temps, occurs only on surface |
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Term
| How does thermal expansion work? |
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Definition
| Molecules mop even when heated. The faster moving atoms take up more room, hence volume increases, this is known as expansion. |
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