Chem CH. 12 Liquids, Solids, and Intermolecular Forces

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  1. What are the properties of Liquids
    Higher density compared to gas

    Indefinite shape(they assume the shape of container

    Definite volume(they are not easily compressed)
  2. What are the properties of solids
    High densities compared to gases

    Definite shape.

    Definite volume(they are easily compressible)

    Maybe crystalline or amorphous
  3. The tendency of liquids to minimize their surface area. Causing liquids to have a "skin" that resist penetration, is known as...
    Surface Tension
  4. When molecules at the surface of a liquid interact with neigbhors below them, resulting in a net inward force that creates tension at the surface is...
    Surface Tension at work.
  5. The resistance of a liquid to flow. Liquids that are more ________ flow more slowly than liquids that are not.
    viscous; Viscosity
  6. When a substance in converted from a liquid to a gaseous state. This is known as...
  7. The rate of evaporation increases with....
    Increased surface area

    Increased temperature

    Decreasing strength of intermolecular forces
  8. Volatile liquids....
    evaporate easily
  9. Nonvolatile liquids...
    don't evaporate easily
  10. When a substance is converted from its gaseous state to liquid state. This is known as...
  11. Evaporation and Condensation are...
  12. The point where the rate of condensation and evaporation become equal. And the number of gaseous water molecules above the liquid remain constant. This is known as...
    Dynamic Equilibrium
  13. The ___________ of a liquid is the partial pressure of its vapor in dynamic equilibrium with its liquid
    Vapor Pressure
  14. Vapor Pressure increases with:
    Increasing temperature 

    Decrease in strength of intermolecular forces
  15. The temperature at which the vapor pressure of a liquid is equal to the pressure above it. This is known as...
    Boiling point
  16. The boiling point at a pressure of 1.0 atm
    Normal Boiling Point
  17. During Evaporation, heat is absorbed also referred to as an _____________ reaction
  18. During Condensation heat is released also referred to as an _____________ reaction
  19. When atoms and molecules have enough thermal energy to overcome the intermolecular forces. Turning solids into liquids.
    Melting Point
  20. Melting is an example of an ____________ reaction
  21. Freezing is an example of an ____________ reaction
  22. A physical change in which a substance changes from its solid state directly to its gaseous state.
  23. The default intermolecular force, present in all molecules and atoms is the ____________.

    A.K.A. The London Force
    Dispersion force
  24. When atoms are not symmetrically arranged around the nucleus. This fleeting charge separation is called....
    Instantaneous dipole
  25. This exist in all polar molecules. Polar molecules have permanent dipoles.
Card Set
Chem CH. 12 Liquids, Solids, and Intermolecular Forces
12.1 - 12.8
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