Gases A, B and C reach dynamic equilibrium in a sealed container.
2A(g)⇌B(g)+C(g) \mathrm{2A(g) \rightleftharpoons B(g) + C(g)} 2A(g)⇌B(g)+C(g)A change is made to the equilibrium mixture. No other condition is changed.
| Substance | Amount at the original equilibrium in mol | Amount immediately after the change in mol |
|---|---|---|
| A | 0.80 | 0.80 |
| B | 0.30 | 0.10 |
| C | 0.40 | 0.40 |
Explain what change was made and how the amounts of A, B and C change as a new equilibrium is established.
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.