Key learning objectives
Mock papers launch from 1 August 2026. New papers will be added regularly from this date.
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alevel · chemistry · Module 3: Periodic Table & Energy · All papers
Releases 1 August 2026
Ultimate and Lifetime users can create one saved set of 4 extended-response questions for this topic and mark answers with examiner-style feedback.
Examiner-style long-answer practice with automatic marking, improvement advice and ProofCoach tracking.
standard / hard
Write your answer first, then mark it.
Write your answer first, then mark it.
Enthalpy, Calorimetry and Hess Cycles: Time (s) vs Temperature (degrees C)
Temperature rises rapidly then levels off as the reaction completes. The maximum temperature change is used in q = mcDeltaT to calculate enthalpy change; cooling afterwards indicates heat loss.
Write your answer first, then mark it.
Write your answer first, then mark it.
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