Topic 3 : Particle Model Of Matter Flashcards
1
Q
What happens during the melting
A
Solid —- liquid
2
Q
What hapens during evaporation
A
Liquid — gas
3
Q
What happens during condensation
A
Gas — liquid
4
Q
What happens during sublimation
A
Solid — gas
5
Q
Properties of a solid
A
High density
Can only vibrate about fixed positions
Least kinetic energy
6
Q
Properties of a liquid
A
Particles can flow over each other
7
Q
Properties of gas
A
Most kinetic energy
Particles can move freely
Lowest density
8
Q
What is density
A
Mass per unit volume
9
Q
What is specific latent heat
A
The energy required to change the state of a 1kg substance without a change of heat
10
Q
How do molecules move
A
Molecules are in constant random motion
