A reversible reaction takes place in a sealed flask. The table shows the mass of product in the flask at different times.
| Time (min) | Mass of product (g) |
|---|---|
| 0 | 0.00 |
| 5 | 2.40 |
| 10 | 3.80 |
| 15 | 4.50 |
| 20 | 4.50 |
| 25 | 4.50 |
| 30 | 4.50 |
What is the earliest time in the table at which the mixture is at equilibrium?
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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.