Changes Of State Flashcards
1
Q
What sizes are the atoms in solid , liquid and gas
A
The atoms are the same - the space gets bigger between them
2
Q
What happens when the atoms are heated ?
A
As a substance is heated up the atoms gain energy ( kinetic energy) which makes them move about more
3
Q
Solid - liquid
A
Energy absorbed
Melt
4
Q
Liquid - gas
A
Energy absorbed
Boiling + evaporation
5
Q
Gas - liquid
A
Energy released
Condensation
6
Q
Liquid - solid
A
Energy released
Freeze
7
Q
Gas - solid
A
Deposition
8
Q
Solid - gas
A
Sublimation
9
Q
What is physical change ?
A
- no new substances are made
- it is a reversible process
e. g - you can melt ice into water and you can freeze water to make ice
10
Q
What is chemical change ?
A
- A new substance is formed
- it is not a reversible process
e. g - if you boil raw egg and turn it into eatable egg you can’t reverse it to a raw egg.
