Particle Model Of Matter

Question 1

Solids and liquids are

Answer 1

Incompressible (cannot be squashed)

Question 2

REQ.PRAC, density of regular and irregular solids

Answer 2

1) set up equipment
2) record height of water in measuring cylinder and mass of solid/liquid being tested
3) add solid/liquid being tested to measuring cylinder
4) record new height
5) subtract original height from new height which gives the volume
6) work out density

Question 3

Considerations from REQ.PRAC

Answer 3

• Reading should be taken from bottom of meniscus
• temp must be same throughout experiment
• slip hazard

Question 4

Equation for change of state

Answer 4

Mass x specific latent heat

SLH measured in J/kg

Question 5

The latent heat of fusion is the

Answer 5

Energy needed for a substance to change from solid to liquid

Question 6

The latent heat of vaporisation is the energy needed

Answer 6

Got a substance to change from liquid to gas

Question 7

What is sublimation

Answer 7

Substances change from a solid to gas without have a liquid phase in middle
-gas to solid is desublimation