Ethene and hydrogen react in a sealed container and reach equilibrium.
C2H4(g)+H2(g)⇌C2H6(g)\mathrm{C_{2}H_{4}(g) + H_{2}(g) \rightleftharpoons C_{2}H_{6}(g)}C2H4(g)+H2(g)⇌C2H6(g)
The forward reaction is exothermic. After each change, the mixture is allowed to reach a new equilibrium.
Statement 1: Removing some ethane shifts the position of equilibrium to the left.
Statement 2: Adding hydrogen increases the amount of ethane in the equilibrium mixture.
Statement 3: Heating the mixture increases the amount of ethene in the equilibrium mixture.
Which statements are correct?
1, 2 and 3
1 only
1 and 2 only
2 and 3 only
124 exam-style questions on OCR GCSE Chemistry 5.3 Equilibria, covering 5.3.1 Reversible reactions and dynamic equilibrium and 5.3.2 Changing the position of equilibrium. Each one has a worked solution and a mark scheme showing where the marks go.