2.1 States of Matter
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The states of matter
-Solid -Liquid -Gas
What model should be used to show states of matter
The particle model
What is the particle model
Solid spheres represent each particle (element/molecule/ion)
Solid force
Strong force of attraction between particle
Solid arrangement
-Regular lattice arrangement -Definite shape and volume
Solid energy
Not much energy
Solid movement
Vibrate about fixed positions
How does solid movement change when heated
Particles vibrate more
Liquid force
Some force of attraction between the particles
Liquid arrangement
Indefinite shape, definite volume
Liquid energy
More energy than solid, less energy than gas
Liquid movement
-Free to move past each other -Tend to stick to each other -Particles constantly moving with random motion
How does liquid movement change when heated
Particles will move faster
Gas force
Almost none
Gas arrangement
Indefinite shape and volume
What happens when a gas particle bounces on a wall
It exerts pressure on that wall
Gas energy
More energy than solid or liquid
Gas movement
-Free to move in straight lines -Only interact when they collide -Move constantly with random motion
How does gas movement change when heated
Particles will move faster
Solid to liquid state change name
Melting
Liquid to gas state change name
Boiling
Gas to liquid state change name
Condensing
Liquid to solid state change name
Freezing
Solid to gas state change name
Subliming