A-LevelChemistryChemical energeticsOct/Nov 2016Paper 1 Q91 Mark

In a calorimetric experiment 1.60 g of a fuel are burnt. 45.0% of the energy released is absorbed by 200 g of water. The temperature of the water rises from 18.0 °C to 66.0 °C. What is the total energy released per gram of fuel burnt (to 3 significant figures)?

Q: What is the correct answer to this A-Level Chemistry question?

The correct answer is B: 55700 J.

Q: What topic does this question test?

This question tests Chemical energetics in A-Level Chemistry (syllabus code 9701). It is worth 1 mark.

A25100 J

B55700 J

C89200 J

D143000 J

✓ Correct Answer

The correct answer is B: 55700 J

📋 Examiner Report & Trap Analysis

Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This A-Level Chemistry Question

Topic

This multiple-choice question tests Chemical energetics in A-Level Chemistry (syllabus code 9701). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Chemistry Oct/Nov 2016 examination, Paper 1 Variant 2.

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