Topic 2 Changing Stats

Question 1

What is the state change from solid to liquid called

Answer 1

Melting

Question 2

What happens when a solid melts

Answer 2

When a solid is heated is particles gain more energy
This makes the particles vibrate more
weakens the forces that hold a solid together
Set a certain temperature called melting point particles have enough energy to break free from their positions

Question 3

What is the state change from liquid to gas called

Answer 3

Boiling

Question 4

What happens when a liquid boils

Answer 4

When a liquid is heated particles get even more energy
Particles move faster which weekends and brakes bonds holding liquids together
At certain temperature, boiling point the particles have enough energy to break their bonds

Question 5

What is the state change from a gas to a liquid called

Answer 5

Condensing

Question 6

What happens when a gas condenses

Answer 6

There is a gas cause the particles no longer have enough energy to overcome the forces of attraction between them
Bonds form between the particles
At the boiling point so many bones have formed between the gases particles that the gas becomes a liquid

Question 7

What is the state change from a liquid to a solid called

Answer 7

Freezing

Question 8

What happens when a liquid freezes

Answer 8

When a liquid cause of particles have Less energy to move around
There’s not enough energy to overcome attraction between the particles so more bonds form
At the melting point so many bones have formed between particles that they are held in place

Question 9

What does the amount of energy needed to change state rely on

Answer 9

Depends on how strong the forces between the particles are
The stronger the force is the more energy is needed to break them with a higher melting point or boiling point