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A-LevelChemistryChemical energeticsOct/Nov 2013Paper 1 Q111 Mark

Use of the Data Booklet is relevant to this question. A student carried out an experiment to determine the enthalpy change for the combustion of methanol. The following results were obtained by the student. [Table: start temperature of the water 20 °C, final temperature of the water 53 °C, mass of alcohol burner before burning 259.65 g, mass of alcohol burner after burning 259.15 g, mass of glass beaker plus water 150.00 g, mass of glass beaker 50.00 g] How much of the heat energy produced by the burning of methanol went into the water?

A209 J
B13 794 J
C20 691 J
D22 154 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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About This A-Level Chemistry Question

This multiple-choice question appeared in the Cambridge A-Level Chemistry (9701) Oct/Nov 2013 examination, Paper 1 Variant 2. It tests the topic of Chemical energetics and is worth 1 mark.

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