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24 Cards in this Set

  • Front
  • Back
List the attractive forces in order of incresing strength
London Dispersion, Dipole-dipole, Hydrogen bonding, Ionic bonding
6 properties of Liquids
1. High density (low volume)
2. Incompressability
3. diffusion slower than gas but will eventually slow down and spread out
4. good surface tension
5. Can evaporate and boil
6. Can form a solid (freezing)
4 properties of solids
1. definate shape and volume
2. definate melting point
3. high density and incompressability
4. low rate of diffusion
Super cool liquids
liquids that retain liquid properties even when they look solid
Ionic Crystals
-Between a non-metal and a metal
-mostly occur 1 & 17 and 2 & 16
-strong, hard, brittle, high melting point
Covalent Network
-share electrons
-between 2 non metal neighbors
-hard, brittle, high melting pt.
Metallic Crystals
-between metal and another metal
- Electron sea-> good conductors
-poor insulators
Covalent molecular
-covalent bonds, dont have to be neighbors
-polar- strong, diplole dipole
-non-polar- weak, london dispersion
-soft, weak, low melting pt
solid-> gas
solid -> liquid
liquid -> gas
liquid -> solid
gas -> liquid
gas -> solid
equilibrium vapor pressure
The pressure exerted by the vapor, when it falls, temperature falls
Molar heat of vaporization
-the amount of heat energy needed to vaporize one molecule of liquid at its bp
-the stronger the attraction > energy required and the higher the molar heat of vaporization
molar heat of fusion
the amount of heat energy required to melt one mole of solid at it's melting pt.
Critical pressure
the lowest pressure that the substance can exist as a liquid at the critical temperature
Critical temperature
the temperature above which the substance willnever liquify
Triple point
when solid liquid and gas all coexist
properties of water
-dipole-dipole and hydrogen bonding
decrease temp
towards the heat
increase heat
away from the heat
^increase kinetic energy
^ the number of molecules that escape to the vapor phase