Chemical equilibrium — KCSE Chemistry

KCSE Chemistry · 60 practice questions · 4 syllabus objectives

7 easy28 medium25 hard

What You'll Learn

Key learning outcomes for this topic, aligned to the KNEC KCSE syllabus.

Define dynamic equilibrium and state the conditions under which it is established in a reversible reaction

Apply Le Chatelier's principle to predict the effect of changes in concentration, temperature and pressure on equilibrium

Explain the industrial importance of equilibrium conditions in the Haber process and Contact process

Chemical equilibrium

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easySHORT ANSWER2 marks

State two factors that can shift the position of equilibrium in a reversible reaction. (2 marks)

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Part (a) — 2 marks

Change in concentration of reactants or products (1 mk)

Change in temperature or pressure (1 mk)

easySHORT ANSWER2 marks

List two characteristics of a system in chemical equilibrium. (2 marks)

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Part (a) — 2 marks

The concentrations of reactants and products remain constant over time (1 mk)

The rates of the forward and reverse reactions are equal (1 mk)

easySHORT ANSWER3 marks

State three industrial applications of chemical equilibrium. [3 marks]

(a) Define chemical equilibrium. [1 mark](b) State two characteristics of a system at equilibrium. [2 marks]

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