Hydrogen can also be made by reacting carbon monoxide with steam. The forward reaction is exothermic. CO(g)+H2O(g)⇌CO2(g)+H2(g)\mathrm{CO(g) + H_{2}O(g) \rightleftharpoons CO_{2}(g) + H_{2}(g)}CO(g)+H2O(g)⇌CO2(g)+H2(g)
Statement 1: increasing the pressure increases the rate at which equilibrium is reached but does not change the equilibrium yield of hydrogen
Statement 2: raising the temperature increases both the rate at which equilibrium is reached and the equilibrium yield of hydrogen
Statement 3: removing carbon dioxide from the mixture as it forms increases the yield of hydrogen
Which statements are correct?
1 only
3 only
2 and 3 only
1 and 3 only
43 exam-style questions on Edexcel GCSE Chemistry 6.3 Dynamic equilibria, covering 6.3.1 The Haber process as a reversible reaction, 6.3.2 Conditions and rate in industrial equilibria, and 6.3.3 Fertilisers and the preparation of ammonium sulfate. Each one has a worked solution and a mark scheme showing where the marks go.