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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Exothermic and endothermic reactions

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2

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Exothermic and endothermic reactions

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Paper 3Theory (Core)2 marks

Understanding exothermic reactions in daily life.

Description

Exothermic Reactions

Exothermic reactions are common in various processes, such as combustion and respiration. They release thermal energy, which can be felt as heat.

  1. a

    Explain the concept of exothermic reactions and provide an example.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 3 structured question: Exothermic and endothermic reactions

Paper 3Theory (Core)2 marks

Description

Energy Production

Exothermic reactions are crucial in energy production, such as in power plants and engines. They provide the necessary heat to generate energy.

  1. a

    Discuss the importance of exothermic reactions in energy production.

    Aim for approximately 2 distinct marking points.

    [2]