A technician tests equal volumes of two liquid hydrocarbons at the same temperature. The only difference between the hydrocarbons is the size of their molecules.
| Sample | Time taken to flow through the same narrow tube in seconds |
|---|---|
| M | 42 |
| X | 24 |
Explain which sample is more flammable. Use the data in the table.
91 exam-style questions on AQA GCSE Chemistry 7.1 Carbon compounds as fuels and feedstock, covering 7.1.1 Crude oil, hydrocarbons and alkanes, 7.1.2 Fractional distillation and petrochemicals, 7.1.3 Properties of hydrocarbons, and 7.1.4 Cracking and alkenes. Each one has a worked solution and a mark scheme showing where the marks go.