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ZIMSEC A-Level Chemistry

6.1.7.2Equilibrium constants

Equilibrium constants in ZIMSEC A-Level Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic25 practice questions1 lesson

Learning objectives

What the syllabus expects you to be able to do.

  1. 6.1.7.2.1Deduce expressions for equilibrium constants in terms of concentrations (Kc) and partial pressures (Kp).
  2. 6.1.7.2.2Calculate values of Kc and Kp and the quantities present at equilibrium.

Lessons

  • Equilibrium constants Kc and Kp

    50 min

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Sample question

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Equilibrium constants: sample question

1 mark

What are the units of KcK_\text{c} for NX2(g)+3 HX2(g)⇌2 NHX3(g)\ce{N2(g) + 3H2(g) <=> 2NH3(g)}?

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