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A-LevelChemistryChemical energetics9701/12 · Oct/Nov 2020 · Q81 Mark

Which pair of enthalpy changes will always share the same sign (i.e. both are always exothermic or both are always endothermic)?

Aenthalpy change of atomisation and enthalpy change of neutralisation
Benthalpy change of atomisation and enthalpy change of solution
Centhalpy change of combustion and enthalpy change of hydration
Denthalpy change of solution and enthalpy change of hydration

✓ Correct answer

C: enthalpy change of combustion and enthalpy change of hydration

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About this question

Topic
Chemical energetics, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source
A-Level Chemistry, Oct/Nov 2020 Paper 1 Variant 2, question 8.

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