A computer model records collisions in equal-sized samples of two reacting mixtures. The results for a period of 1.0 s are shown in the table.
| mixture | total number of collisions | collisions with energy at least equal to the activation energy (%) |
|---|---|---|
| R | 720 | 5.0 |
| S | 1200 | 2.0 |
Explain which mixture has the greater rate of reaction. Use calculations in your answer.
122 exam-style questions on Edexcel GCSE Chemistry 8.1 Rates of reaction, covering 8.1.1 Measuring and interpreting rates of reaction, 8.1.2 Collision theory and the factors affecting rate, and 8.1.3 Catalysts and enzymes. Each one has a worked solution and a mark scheme showing where the marks go.