Term
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Definition
| matter is made of particles that are always in motion |
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Term
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Definition
-Expansion
-Fluidity
-Low density
-Compressibility
-Diffusion
-Effusion
-Indefinite volume
-Indefinite shape |
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Term
| Least common state of matter |
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Definition
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Term
| Definite Volume, Indefinite Shape |
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Definition
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Term
| Takes on the shape of container |
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Definition
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Term
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Definition
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Term
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Definition
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Term
| intermolecular forces pull particles together, forming smallest surface; examples – raindrop, paperclip floating |
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Definition
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Term
| when a liquid is attracted to a solid |
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Definition
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Term
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Definition
liquid to gas (energy added)
at the boiling point, liquid to gas throughout – bubbles, (intermolecular forces broken) |
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Term
| Crystalline (1 of 2 types of solid) |
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Definition
| geometric patterns, definite melting pt |
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Term
| Amorphous (2 of 2 types of solid) |
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Definition
| random arrangement, melts over a range of temperatures |
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Term
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Definition
| high density, incompressible, low rate of diffusion, and definite shape and volume |
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Term
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Definition
| 2 opposing changes at equal rates |
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Term
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Definition
equilibrium systems adjust to stress to attain a new equilibrium
ex. Iodine bottle |
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Term
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Definition
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Term
| Endothermic Changes of State (energy added) |
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Definition
| melting, sublimation, vaporization |
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Term
| Exothermic Changes of State (energy removed) |
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Definition
| freezing, deposition, condensation |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| Liquid --> solid (energy removed) |
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Term
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Definition
| Gas --> solid (energy removed) |
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Term
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Definition
| Gas --> liquid (energy removed) |
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Term
Chart Labels
Ti
Tf
Plateau
Bp
Mp
Fp of water |
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Definition
-Ti = initial temperature (beginning)
-Tf= final temperature (ending)
-Plateau = flat part; indicates a change of state.
-Bp = boiling point; water – 100 degrees C
-Mp = melting point; water – 0 degrees C; pdb 53 degrees C
-Fp of water – 0 degrees C; Mp = fp |
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Term
| Molar Heat of Vaporization |
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Definition
| Energy required to change one mole of liquid to gas at b.p. (energy unit = joule) |
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Term
| Examples of Heat of Vaporization |
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Definition
| Sweating/ air conditioners and refrigerators use energy to change liquid to gas. |
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Term
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Definition
| Energy needed to change 1 mole of solid to liquid at m.p. |
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Term
| Example of Heat of Fusion |
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Definition
| Energy is used to change a solid into a liquid – example – ice in drink |
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Term
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Definition
| where critical pressure meets critical temperature |
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Term
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Definition
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Term
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Definition
| where s.p. crosses liquid-gas line |
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Term
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Definition
| where s.p. crosses solid-liquid line |
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Term
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Definition
| only gas present above this temp |
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
| Phases that are relatively incompressible |
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Definition
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Term
| Phases that diffuse rapidly |
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Definition
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Term
| Has an indefinite shape and a definite volume |
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Definition
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Term
| Has the most distance between particles |
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Definition
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Term
| Para dichlorobenzene in our lab was an example |
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Definition
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Term
| Dry ice and iodine are examples |
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Definition
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Term
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Definition
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Term
| 2 than occur at the same temperature |
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Definition
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