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Cambridge IGCSE chemistry

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  1. States of matter
    States of matter
    3 Topics
  2. Changing state
    5 Topics
  3. Diffusion
    4 Topics
  4. Experimental techniques
    Taking measurements
    4 Topics
  5. Separation and purification
    4 Topics
  6. Chromatography
    2 Topics
Cambridge IGCSE chemistry Changing state Boiling and evaporation
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Lesson 2, Topic 2
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Boiling and evaporation

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Boiling

  • Boiling and evaporation are both changes of state that involve a liquid changing to a gas

  • Boiling happens when a liquid is heated to its boiling point

Evaporation

  • Evaporation can happen at temperatures lower than the liquids boiling point

  • More energetic particles that are near the surface of the liquid can escape and become gas particles