Across
- 3. reaction that occurs suddenly with the evolution of large amount of gas
- 5. that can produce heat at a reasonable cost
- 6. - process of burning fuel in air or oxygen by the release of heat and light
- 8. the hottest zone of the candle
- 10. the lowest temperature at which substance catches fire
Down
- 1. amount of heat produced when one kilogram of fuel is burnt
- 2. the residue left behind from desctructive distillation
- 4. process of seperating the fractions
- 7. the heat by a fuel is measured
- 9. mixing of sulphur dioxide and sulphuric acid in the air causes