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9.3 Common atmospheric pollutants and their sources

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Question 1

A railway company changes the fuel and operating conditions used in its locomotives.

ConditionOld locomotivesNew locomotives
FuelContains carbon, hydrogen and sulfurHydrocarbon containing no sulfur
Oxygen supply during combustionLimitedPlentiful
Engine temperatureHighHigh

Explain how changing from the old locomotives to the new locomotives changes the atmospheric pollutants released. Describe how these changes affect the risks to human health and the environment.

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Markscheme

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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