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Cambridge IGCSE Chemistry practice

Paper 4 structured question: Solids, liquids and gases

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Attempt questionSolids, liquids and gases revisionRevise the key idea

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1

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Solids, liquids and gases

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Paper 4Theory (Extended)1 marks

Understanding phase changes is essential in chemistry.

Description

Heating and Cooling Curves

Heating and cooling curves illustrate the temperature changes of a substance as it undergoes phase transitions.

  1. a

    State the process that occurs when a solid turns into a liquid.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 4 structured question: Solids, liquids and gases

Paper 4Theory (Extended)3 marks

Description

Cooling Curve

A cooling curve shows how the temperature of a substance decreases as it loses heat.

  1. a

    Explain what happens to the particles of a gas as it cools and condenses into a liquid.

    Aim for approximately 3 distinct marking points.

    [3]