C2 Flashcards
What are the three states of matter?
Solid, liquid and gas
For substance, to change from one state to another…
Energy must be transferred
The particles gain energy this results in…
The breaking of some of the attractive forces between particles during melting
When a liquid evaporates particles…
Leave the surface of the liquid only
What happens when a liquid boils?
Bubbles of gas form throughout the liquid before rising to the surface and escaping.
What is the amount of energy needed for a substance to change state dependent on?
The strength of the attractive forces between particles
When a substance, changes state, the stronger, the forces of attraction…
The more energy needed to break them apart
Substances that have strong attractive forces between particles generally have what?
Higher melting and boiling points
The particles in a solid are arranged in what pattern
Regular