In the Deacon process, hydrogen chloride gas is oxidised by oxygen to produce chlorine gas and water vapour in a reversible reaction:
4HCl(g)+O2(g)⇌2Cl2(g)+2H2O(g) 4\text{HCl}(\text{g}) + \text{O}_2(\text{g}) \rightleftharpoons 2\text{Cl}_2(\text{g}) + 2\text{H}_2\text{O}(\text{g}) 4HCl(g)+O2(g)⇌2Cl2(g)+2H2O(g)Predict the effect that adding a copper(II) chloride catalyst has on the equilibrium yield of chlorine.
60 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.