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Entropy and Gibbs Free Energy

2017 Paper One

Question Five
Part of a series looking at past AQA A-level Chemistry questions with a focus on better performance in examinations.

If you haven't gone through the question/paper, click the direct link below, and have a go...

AQA A-level CHEMISTRY Paper 1 Inorganic and Physical ChemistryTuesday 13 June 2017

A 6-mark question

We're working towards this:

We need to find the change in entropy, ∆S:


Common issues to be aware of:
Not converting ∆H to Joules
Not converting degrees celsius to kelvin
Quoting ∆G to wrong degree of precision

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