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Cambridge IGCSE Chemistry practice

Paper 3 structured question: Diffusion

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Diffusion

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Paper 3Theory (Core)1 marks

Understanding diffusion in gases.

Description

Diffusion in Gases

When a gas is released in a room, it spreads out until it is evenly distributed.

  1. a

    State the process by which gas particles spread out in a room.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 3 structured question: Diffusion

Paper 3Theory (Core)3 marks

Description

Factors Influencing Diffusion

Diffusion occurs faster at higher temperatures and with smaller particles.

  1. a

    Explain how temperature affects the rate of diffusion.

    Aim for approximately 3 distinct marking points.

    [3]