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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:
Then:
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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