States of matter
What is sublimation
Solid to gas
What is deposition
Gas to solid
Describe the characteristics of atoms in a solid form
Strong forces of attraction held in a fixed position
Keep a fixed shape or volume
Particles vibtrate in a fixed position
Lattice arrangement
Describe the characteristics of a liquid
Weak forces of attraction
Particles free to move but remain quite close together
No fixed shape or volume
Particles contantly move randomly
The hotter the liquid the faster they move
Describe the characteristics of a gas
Particles free to move in straight
lines and are far apart.
No fixed shape or volume. Always
fills a container
Particles constantly move
randomly.
The hotter the gas the faster they
move (expands or pressure
increases)
Very weak forces of attraction
between particles
What must happen to energy for a liquid to change to a gas
It must gain energy to overcome the forces of attraction between particles (intermolecular forces)
What must happen to a gas for it to change to a liquid
Must lose energy
What is room temperature at
20-25