3.1.2 - kinetic theory Flashcards
1
Q
diffusion definition
A
movement of particles from a high concentration to a low concentration
2
Q
what are the three states of matter?
A
solid, liquid, gas
3
Q
solid -> liquid
A
melting
4
Q
liquid -> solid
A
freezing
5
Q
liquid -> gas
A
evaporation
6
Q
gas -> liquid
A
condensation
7
Q
solid -> gas
A
sublimation
8
Q
gas -> solid
A
deposition
9
Q
what happens when a solid substance is heated to its melting point?
A
- particles gain KE, moving faster
- until particles have enough energy to overcome the forces holding them together
- the particles start to move past each other forming a liquid
10
Q
what happens when a gas is cooled to its boiling point?
A
- particles lose KE, slowing down
- forces of attraction start to form between the particles
- forces start to hold the particles together as a liquid
