C1 - States of Matter Flashcards
What is diffusion?
The movement of particles from an area of high concentration to an area of low concentration until they are evenly spread out.
How does heat affect diffusion?
Warmer molecules = more kinetic energy = faster diffusion
How does particle size affect diffusion?
Smaller, lighter particles will diffuse faster.
Name the five changes of state.
Melting, boiling, evaporation, freezing and condensation.
Define atom.
Smallest particles of matter, we cannot break them down further by chemical means.
Define molecule.
A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
Define ion.
An atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
