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6.3 Interpreting and interacting with earth systems

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Question 19
F

An engineer changes a car engine so that it runs at a higher temperature with more air. The fuel now burns more completely.

What is the likely change in the amounts of carbon monoxide and oxides of nitrogen in the exhaust gases?

[1]
A

Carbon monoxide increases; oxides of nitrogen increase

B

Carbon monoxide decreases; oxides of nitrogen decrease

C

Carbon monoxide decreases; oxides of nitrogen increase

D

Carbon monoxide increases; oxides of nitrogen decrease

Markscheme

6.3 Interpreting and interacting with earth systems Questions

  1. GCSE
  2. /Chemistry
  3. /6.3 Interpreting and interacting with earth systems

51 exam-style questions on OCR GCSE Chemistry 6.3 Interpreting and interacting with earth systems, covering 6.3.1 Formation and evolution of the atmosphere, 6.3.2 The greenhouse effect and climate change, 6.3.3 Sources and problems of atmospheric pollutants, and 6.3.4 Producing potable water. Each one has a worked solution and a mark scheme showing where the marks go.

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