Chapter 3 Flashcards
Diffusion
Process that takes place when a gas/liquid moves from a religion of high concentration to a region of low concentration
melting point
fixed room temperature at which a solid completely changes state to a liquid
freezing point
fixed temperature at which a liquid completely changes state to a solid
boiling point
fixed temperature at which a liquid completely changes state to a gas
condensation point
fixed temperature at which gas completely changes state to a liquid
sublimation
fixed temperature at which a solid completely changes state to a gas
deposition
fixed temperature at which a gas completely changes state to a solid
temperature
measure of a substances internal energy
Heat
Heat is the energy in transit due to a difference in temperature and always flows from hot to cold
Describe how the Browian motion was conducted
- Robert Brown suspended pollen particles on water and observed how they moved
- He concluded that pollen particles are colliding continuously
- water particles are extending pressure on the pollen particles and cause the pollen particles to move in all directions
what 4 things are to be remembered when answering a kinetic molecular theory question?
- motion of particles
- spaces between particles
- forces between particles
- collisions between particles
Name 4 characteristics of solids
- higher density than l&g
- keep their shape
- expand when heated
- pure solids melt @ characteristic temps
Name 7 characteristics of liquids
- Fill containers
- Take shape of container
- Can be poured
- Density: gases
- Evaporate
- Pure substances boil @ characteristic temps
- Expand when heated
Name 6 characteristics of gasses
- Full container
- Take shape of container
- Can be poured
- Low density
- Expand when heated
- Compressed
heating graph
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