An impurity in an industrial gas reacts with a second gas in a sealed reactor whose volume can be adjusted.
The same numbers of particles of both reactants are used in each experiment. The time taken to form a fixed amount of product is measured.
| Experiment | Temperature in K | Volume of reactor in dm³ | Time in s |
|---|---|---|---|
| P | 300 | 4.0 | 120 |
| Q | 330 | 4.0 | 48 |
| R | 300 | 2.0 | 72 |
Explain which change has the greater effect on the rate of reaction. Use the data and collision theory 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.