Substances L and M react reversibly in a sealed glass ampoule. The table shows how the amounts of L and M change.
| Time in minutes | Amount of L in mol | Amount of M in mol |
|---|---|---|
| 0 | 0.70 | 0.10 |
| 2 | 0.60 | 0.20 |
| 4 | 0.55 | 0.25 |
| 6 | 0.52 | 0.28 |
| 8 | 0.52 | 0.28 |
What happens between 8 minutes and 10 minutes if the conditions remain unchanged?
L changes into M faster than M changes into L because more L is present
L and M continue reacting until their amounts become equal
L stops reacting, while M continues to change into L
L continues to change into M and M continues to change into L at equal rates
109 exam-style questions on AQA GCSE Chemistry 6.2 Reversible reactions and dynamic equilibrium, covering 6.2.1 Reversible reactions, 6.2.2 Energy changes and reversible reactions, 6.2.3 Equilibrium, 6.2.4 The effect of changing conditions on equilibrium, 6.2.5 The effect of changing concentration, 6.2.6 The effect of temperature changes on equilibrium, and 6.2.7 The effect of pressure changes on equilibrium. Each one has a worked solution and a mark scheme showing where the marks go.