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9.3 Common atmospheric pollutants and their sources

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Question 6

Ethane, C2H6\text{C}_2\text{H}_6C2​H6​, is burned in an industrial heating unit. The flow of ethane is the same in both trials.

TrialOxygen flow rate in cm3/s\text{cm}^3\text{/s}cm3/sProducts detectedEnergy released per dm3\text{dm}^3dm3 of ethane in kJ\text{kJ}kJ
K75carbon monoxide and water41
L140carbon dioxide and water65

Use the data to explain why Trial K released less energy than Trial L. Give a balanced equation for the combustion reaction in Trial K.

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9.3 Common atmospheric pollutants and their sources Questions

  1. GCSE
  2. /Chemistry
  3. /9.3 Common atmospheric pollutants and their sources

102 exam-style questions on AQA GCSE Chemistry 9.3 Common atmospheric pollutants and their sources, covering 9.3.1 Atmospheric pollutants from fuels and 9.3.2 Properties and effects of atmospheric pollutants. Each one has a worked solution and a mark scheme showing where the marks go.

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