A mechanic compares the exhaust gases from two motorcycle engines. Engine Q produces more carbon monoxide but fewer oxides of nitrogen than engine P. The engines differ only in their air supply and combustion temperature.
What are the likely operating conditions in engine Q compared with engine P?
A greater air supply and a lower combustion temperature.
A greater air supply and a higher combustion temperature.
A more limited air supply and a lower combustion temperature.
A more limited air supply and a higher combustion temperature.
109 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.