The particle model/Changes of state Flashcards
How are the atoms in a solid arranged?
in a regular pattern close together.
How do atoms in a solid move?
They vibrate in fixed positions
How are atoms in a liquid arranged?
Random but close together
How do atoms in a liquid move around?
They move over/around one another
How are atoms in a gas arranged?
Randomly and far apart
How do atoms in a gas move?
Quickly in all directions
What is the process where a substance moves from a solid to a gas called?
Sublimation
What is the process where a substance moves from a gas to a solid called?
Deposition
What is the process where a substance moves from a solid to a liquid called?
Melting
What is the process where a substance moves from a liquid to a gas called?
Evapouration
What is the process where a substance moves from a liquid to a solid called?
Freezing
What is the process where a substance moves from a gas to a liquid called?
Condensation
Why does the temperature stay constant when a substance is melting?
The substance is being heated but the energy from it is making the particles break from heir fixed positions
What is the melting/freezing point of water?
0 degrees celcius
What is the boiling/condensing point of water?
100 degrees celcius
