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9.2 Carbon dioxide and methane as greenhouse gases

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Question 6

In a laboratory chamber, a pulse of infrared radiation travels upwards and is absorbed by a sample of methane. Sensor A is placed below the sample and sensor B is placed above it. Both sensors are designed to distinguish radiation emitted by the methane from the original pulse.

Which observation is correct?

[1]
A

Both sensor A and sensor B can detect infrared emitted by the methane.

B

Neither sensor A nor sensor B can detect infrared emitted by the methane.

C

Only sensor B can detect infrared emitted by the methane.

D

Only sensor A can detect infrared emitted by the methane.

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

73 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, 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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