P3 - Particle Model Of Matter

Question 1

SOLID
Particle Arrangement
Forces between particles
Distance between particles
Particle motion

Answer 1

Regular, fixed
Strong
Very small
Vibration only

Question 2

LIQUID
Particle arrangement
Forces between particles
Distance between particles
Particles motion

Answer 2

Irregular
Weak
Small
Slow

Question 3

GAS
Particle arrangement
Forces between particles
Distance between particles
Particles motion

Answer 3

Irregular
Very weak
Large
Fast

Question 4

What are the changes of state?

Answer 4

Solid to liquid - melt
Liquid to solid - freeze
Solid to gas - sublimate
Liquid to gas - boil or evaporate
Gas to liquid - condense

Question 5

What is latent heat?

Answer 5

The energy needed to change the state of a substance

Question 6

What is specific latent heat?

Answer 6

The amount of energy needed to change 1kg of a substance from one state to another, without changing its temperature.

Question 7

What will happen to a gas at a constant volume?

Answer 7

Temp increases
Particles get faster and collide with the container more often.
Pressure decreases

Question 8

What will happen to a gas at constant temperature?

Answer 8

Volume increases
Particles spread out and collide with the container less often.
Pressure decreases