The equation for the reaction in the Haber process is N2+3H2⇌2NH3\text{N}_2 + 3\text{H}_2 \rightleftharpoons 2\text{NH}_3N2+3H2⇌2NH3. What is the effect of increasing the pressure on the yield of ammonia at equilibrium, and why?
The yield increases, because there are fewer molecules of gas on the right
The yield decreases, because there are fewer molecules of gas on the right
The yield increases, because there are more molecules of gas on the right
The yield decreases, because there are more molecules of gas on the left
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.