What happens to the unreacted nitrogen and hydrogen in the Haber process?
They are recycled back into the reactor
They are released into the atmosphere
They are burned to heat the reactor
They are dissolved in cold water
39 exam-style questions on AQA GCSE Chemistry 10.4 The Haber process and the use of NPK fertilisers, covering 10.4.1a The Haber process, 10.4.1b Equilibrium and rate in the Haber process, and 10.4.2 Production and uses of NPK fertilisers. Each one has a worked solution and a mark scheme showing where the marks go.