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Cambridge IGCSE Chemistry practice

Paper 4 structured question: Solids, liquids and gases

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Solids, liquids and gases

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Paper 4Theory (Extended)3 marks

Explaining gas behavior using kinetic particle theory.

Description

Gas Volume and Pressure

A gas occupies a volume of 2.0 L at a pressure of 1.0 atm. If the volume is reduced to 1.0 L, what happens to the pressure if the temperature remains constant?

  1. a

    Explain what happens to the pressure of the gas when the volume is reduced.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 4 structured question: Solids, liquids and gases

Paper 4Theory (Extended)1 marks

Description

Gas Behavior

Consider a gas in a closed container. When the temperature is increased, the volume of the gas also increases if the pressure is constant. Conversely, if the volume of the gas is decreased, the pressure increases if the temperature remains constant.

  1. a

    State the relationship between temperature and volume of a gas at constant pressure.

    Aim for approximately 1 distinct marking point.

    [1]