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9.3 Common atmospheric pollutants and their sources

9.3 Common atmospheric pollutants and their sources

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Question 5

The table below shows information about three biomass-derived fuels:

Table 1: Properties of three biomass-derived fuels

PropertyFuel A (Wood pellets)Fuel B (Biodiesel)Fuel C (Biogas)
State of fuel at room temperatureSolidLiquidGas
Primary transportation methodTruckTankerPipeline
Percentage by mass of sulfur in fuel (%)0.080.0050.001
Relative emission level of soot/particulatesHighMediumLow

Using this information, answer the following questions:

a.

Explain why Fuel A (Wood pellets) is typically transported by truck and cannot be transported through a pipeline.

[2]
b.

Equal masses of each fuel are burned. State which fuel produces the most sulfur dioxide and give a reason for your choice.

[2]
c.

State one environmental problem caused by sulfur dioxide emissions.

[1]
d.

Particulates (soot) are formed during incomplete combustion. Identify the reactant that must be in limited supply for incomplete combustion of these fuels to occur.

[1]
Markscheme

9.3 Common atmospheric pollutants and their sources Questions

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

11 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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