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2.2.3 Melting, boiling and evaporation
1 Describe melting, solidification, boiling and condensation in terms of energy transfer without a change in
temperature
2 Know the melting and boiling temperatures for water at standard atmospheric pressure
3 Describe the differences between boiling and evaporation
4 Describe evaporation in terms of the escape of more energetic particles from the surface of a liquid
5 Describe how temperature, surface area and air movement over a surface affect evaporation
6 Explain how evaporation causes cooling
7 Describe latent heat as the energy required to change the state of a substance and explain it in terms of
particle behaviour and the forces between particles
