A hydrocarbon fuel is burned in a drying furnace. The fuel contains carbon and hydrogen only. The furnace is operated first with plenty of oxygen and then with a limited supply of oxygen.
Compare the substances released in the two conditions and explain how the change in air supply affects the amount of energy released.
102 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.