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Cambridge IGCSE Chemistry practice

Paper 4 structured question: Reversible reactions and equilibrium

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Reversible reactions and equilibrium

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Paper 4Theory (Extended)1 marks

Understanding equilibrium is crucial in chemical reactions.

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Equilibrium Characteristics

At equilibrium, the concentrations of reactants and products do not change, even though the reactions continue to occur.

  1. a

    State what remains constant at equilibrium in a reversible reaction.

    Aim for approximately 1 distinct marking point.

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Paper 4 structured question: Reversible reactions and equilibrium

Paper 4Theory (Extended)1 marks

Description

Equilibrium in Reversible Reactions

In a closed system, a reversible reaction reaches equilibrium when the rate of the forward reaction equals the rate of the reverse reaction, and the concentrations of reactants and products remain constant.

  1. a

    State the condition that must be met for a reversible reaction to reach equilibrium.

    Aim for approximately 1 distinct marking point.

    [1]