Changes of State

Question 1

what is the process melting sometimes also known as

Answer 1

fusion

Question 2

what happens when we heat a solid

Answer 2

when you heat a solid, the solid particles vibrate more energetically until they have enough energy to overcome the forces between theme

Question 3

what happens when we heat a liquid

Answer 3

liquid particles move more energetically until they have enough energy to escape completely from the forces between them.
The particles become a gas and move completely freely.

Question 4

what is the process boiling sometimes also known as

Answer 4

vaporisation

Question 5

what are the 4 qualities of a SOLID

Answer 5

SOLIDS:

1) fixed shape due to strong forces between its particles
2) can’t be compressed because particles are already close together
3) the particles are arranged in an ordered pattern
4) the particles move around in a fixed point

Question 6

what are the 3 qualities of a LIQUID

Answer 6

LIQUIDS:

1) cannot be compressed either due to close particles
2) particles are in contact but can still move allowing a liquid to flow and take the shape of its container
3) the particles are arranged in a disordered pattern

Question 7

what are the qualities of a GAS

Answer 7

GAS:

1) gases can be compressed
2) particles are free to move in any direction allowing it to flow, have no fixed shape and completely fill its container
3) the particles aren’t ordered in any way

Question 8

when water evaporates its volume increases by how much

Answer 8

it increases by 1000