PhysicsCode 5054
Melting, boiling and evaporation
What this topic asks you to be able to do
- Describe melting, solidification, boiling and condensation as processes in which energy is transferred without the temperature changing
- Know the temperatures at which water melts and boils under standard atmospheric pressure
- Outline the ways in which boiling and evaporation differ
- Describe evaporation in terms of more energetic particles making their escape from a liquid's surface
- Outline how the temperature, the surface area and the movement of air across a surface influence evaporation
- Account for evaporation producing a cooling effect
- Describe latent heat as the energy a substance needs in order to change state, and explain it using how particles behave and the forces between them