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)?
A25100 J
B55700 J
C89200 J
D143000 J
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The correct answer is B. This question tests the candidate's understanding of chemical energetics within the Chemistrysyllabus. The examiner's mark scheme requires...
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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...
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