chem test review

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Author:
Anonymous
ID:
284967
Filename:
chem test review
Updated:
2014-10-06 00:02:06
Tags:
chemistry
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Description:
chemistry
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  1. solids: Liquids: Gas:
    Force Strength
    structure
    shape
    volume
    density
    freedom of motion
    expansion
    Compressibility
    rates of diffusion
    • Force strength: Strong IMF's Weaker IMF's No IMF's
    • shape: Definite Takes shape of Container  takes shape of container
    • volume: definite  definite   takes volume of container
    • density: High  Medium-High(less than solid EXCEPT for water) low density
    • freedom of motion: Very restricted Limited freedom of motion Move freely
    • expansion: Does not expand much with increases in temp  expands slightly with increases in temp highly expansive with increases in temp
    • compressibility: Not compressible Mostly not compressible Easily compressed into smaller volumes
    • rates of diffusion: Slow  easily   easily and quickly
  2. liquid changes to vapor
    vaporization
  3. vapor changes to liquid
    condensation
  4. solid changing to liquid
    melting
  5. liquid changing to solid
    freezing
  6. solid changing directly to vapor without going through the liquid phase


    solid+energy -> vapor
    sublimation
  7. vapor changing directly to solid without going through the liquid phase

    vapor-> solid +energy
    deposition
  8. heat exits the system
    exothermic reactions
  9. heat enters the system
    endothermic reactions
  10. liquid to gas below the boiling point
    evaporation
  11. 2 types of physical properties
    and their definition
    intensive and extensive

    • intensive: physical properties does not depend on the amount of matter present
    • Extensive: depends on the amount of matter present (usually measurements)
  12. high pressure= __ temp
    Low pressure= __ temp
    • low
    • high
  13. high pressure------ intermolecular forces are---
    low pressure -----IMF's are
    • strong
    • weak
  14. types of exothermic changes
    • condensation
    • freezing
    • deposition
  15. types of endothermic changes
    • sublimation
    • vaporization
    • melting

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