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Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Section

The arrangement of the particles

19 practice questions

Start practising (3 questions)

Practice questions

1–3 of 3 · Hard

  1. Question 1

    2 marks · Hard

    Describe one way in which the arrangement of particles in a liquid differs from that in a gas, and one way the movement of the particles differs.

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  2. Question 2

    5 marks · Hard

    The diagram shows three containers, each containing a different state of a substance at the same temperature.

    Geometry diagram with points S1, S2, S3, S4, S5, S6, L1, L2, L3, L4, L5, L6, G1, G2, G3, G4, G5, G6
    Diagram representing solids, liquids, and gases (not to scale).
    (a)

    Give the letter for the container that shows the correct particle arrangement for a solid.

    [1 mark]
    (b)

    Describe the movement of the particles in the container you identified in part (a).

    [1 mark]
    (c)

    Explain, using the particle model, why the arrangement of particles in a gas allows a gas to fill any container.

    [2 marks]
    (d)

    State one reason, based on particle movement, why liquids can flow but solids cannot.

    [1 mark]
    Answer and see the solution →

  3. Question 3

    2 marks · Hard

    Explain, using the particle model, why solids have a fixed shape and gases do not.

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