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ZIMSEC A-Level Chemistry

6.4.2Phase Equilibria

Phase Equilibria in ZIMSEC A-Level Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
Topic110 practice questions5 lessons

Overview

Form 6.

In this topic

Lessons

  • Steam distillation of immiscible liquids

    35 min

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  • Partition coefficients and solvent extraction

    40 min

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  • Gas-liquid chromatography and HPLC

    40 min

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  • Paper, thin-layer and column chromatography

    45 min

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  • Electrophoresis and genetic fingerprinting

    40 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Phase Equilibria: sample question

1 mark

The oven temperature of a gas chromatograph is raised from 80 °C to 120 °C, with everything else unchanged. What happens to the retention times?

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