A student investigated the energy released when different alcohols were burned using a spirit burner. Their results are shown in the table below.
| Alcohol | Mass of alcohol burned / g | Temperature rise / °C |
|---|---|---|
| Methanol | 0.45 | 15 |
| Butanol | 0.25 | 15 |
Explain, using only the information in the table, why butanol might be the better fuel.
94 exam-style questions on Edexcel GCSE Chemistry 8.2 Heat energy changes in chemical reactions, covering 8.2.1 Exothermic and endothermic changes, 8.2.2 Bond breaking, bond making and overall energy change, 8.2.3 Calculating energy change from bond energies, and 8.2.4 Activation energy and reaction profiles. Each one has a worked solution and a mark scheme showing where the marks go.