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Cambridge IGCSE Combined Science practice

Paper 4 structured question: Kinetic particle model of matter

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Kinetic particle model of matter

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Paper 4Theory (Extended)3 marks

Investigating the effects of volume on gas pressure.

Description

Gas Volume and Pressure

When the volume of a gas is reduced, the space available for the gas particles decreases, leading to more collisions with the walls of the container.

  1. a

    Analyse the relationship between volume and gas pressure.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 4 structured question: Kinetic particle model of matter

Paper 4Theory (Extended)2 marks

Description

Gas Pressure and Temperature

As the temperature of a gas increases, the speed of its particles also increases. This leads to more frequent collisions with the walls of the container.

  1. a

    Explain how increasing temperature affects gas pressure.

    Aim for approximately 2 distinct marking points.

    [2]