Question
Edexcel Paper 1F (Foundation)
Two reactions are observed:
Reaction A: a thermometer reading rises from 22 °C to 38 °C. Reaction B: a thermometer reading falls from 22 °C to 12 °C.
(a) State whether each reaction is exothermic or endothermic. (2 marks) (b) Explain why temperature changes in an exothermic reaction. (2 marks)
4 marks · take your time before peeking.
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Generated by TopMyGrade AI · cross-check official sources before relying on the mark-scheme phrasing.