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Cambridge IGCSE 2023

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  1. States of matter
    States of matter
    3 Topics
    1. The three states of matter
    2. The particle model
    3. Past paper questions (states of matter)
  2. Changes of state
    5 Topics
    1. Changing state
    2. Boiling and evaporation
    3. The effect of temperature and pressure on particles
    4. Explaining changes of state (S)
    5. Past papers (changes of state)
  3. Heating a cooling curves
    3 Topics
    1. Change of state and temperature change
    2. Heating curves
    3. Past papers (heating ad cooling curves)
  4. Movement of particles
    4 Topics
    1. What id diffusion ?
    2. Rate of diffusion and molecular mass
    3. The effect of pressure and temperature on particles
    4. Diffusion past paper questions
Cambridge IGCSE 2023 Movement of particles
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Lesson 4 of 4
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Movement of particles

Learning objectives:

  • Describe and explain diffusion in terms of kinetic particle theory
  • Describe and explain the effect of relative molecular mass on the rate of diffusion of gases
Lesson Content
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What id diffusion ?
Rate of diffusion and molecular mass
The effect of pressure and temperature on particles
Diffusion past paper questions