Zusammenfassung der Ressource
Chemistry
- CHANGES OF STATE
- Solid
- - Particles vibrate around fixed positions
- - Do not have a lot of energy or room to vibrate quickly
- - Fixed Shape
- - Cannot be compressed
- - Connected by strong forces of attraction
- Liquid
- - Flow reasonably easily and can be poured
- - Particles have room to move
- - Connected by weak forces of attraction
- - Take the shape of a container
- - Cannot be compressed
- Gas
- - Spread out and move quickly
- - Connected by almost no forces of attraction
- - Particles have enough energy to overcome forces of attraction
- - Fills the container
- - Can be compressed
- HEATING AND COOLING
Anmerkungen:
- More information in Chemistry book
- Straight line
- - This line is straight because the liquid is
solidifying. The particles of the liquid are
rearranging into a solid, they are overcoming
the forces of attraction between them and
changing state.
- Impurities
- -Raise the boiling point
-Lower the melting point
- DIFFUSION
- The net movement particles from an
area of high concentration to an area of
lower concentration
- Brownian Motion
- Brownian motion explains why particles do
not disperse in straight lines
- With brownian motion, you can see wether one has bigger or smaller