Across
- 2. the fuel reacts with the maximum amount of oxygen to form only carbon dioxide and water
- 4. the amount of fuel (vegetation) in tonnes per hectare of land
- 5. molecule containing only hydrogen and carbon
- 8. a measure of the ease with wich a substance will ignite and sustain combustion
- 9. a substance that provides the energy to start combustion reactions
- 10. a measure of the ease with which a substance produces vapours (gas)
Down
- 1. the fuel reacts with the limited amounts of oxygen to a variety of products which may include carbon monoxide and carbon (soot)
- 3. reaction between oxygen and a fuel which produces heat
- 6. substances that release useable energy during reaction with oxygen
- 7. lowest temperature at which a substance will ignite and sustain combustion reactions Down