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9.2 Carbon dioxide and methane as greenhouse gases

9.2 Carbon dioxide and methane as greenhouse gases

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Question 10

Methane is a potent greenhouse gas that contributes significantly to the greenhouse effect.

a.

Explain how greenhouse gases, such as methane, interact with radiation to maintain temperatures on Earth at a level that supports life.

[2]
b.

A sample of air collected near a landfill site is found to contain 0.12% methane by mass.

Calculate the mass of methane in 450 kg of this air sample. Give your answer in grams.

[2]
Markscheme

9.2 Carbon dioxide and methane as greenhouse gases Questions

  1. GCSE
  2. /Chemistry
  3. /9.2 Carbon dioxide and methane as greenhouse gases

13 exam-style questions on AQA GCSE Chemistry 9.2 Carbon dioxide and methane as greenhouse gases, covering 9.2.1 Greenhouse gases, 9.2.2 Human activities which contribute to an increase in greenhouse gases in the atmosphere, 9.2.3 Global climate change, and 9.2.4 The carbon footprint and its reduction. Each one has a worked solution and a mark scheme showing where the marks go.

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