Zusammenfassung der Ressource
Unit 2 Revision
- Fuels
- a fuel is a substance that is burned giving out energy
- dead animals, subjected to heat and pressure, formed over millions of years
- fractional distillation
- gasoline > pertrol > naptha > kerosine > diesel oil > fuel oil || residue
- quantity of energy released
- fuel - porridge || inital temp - 31 || highest temp - 40 || temp difference - 9
- porridge - Eh = cm∆t | 4.18 x 0.005Kg x 4 | KJKG-1 oc-1| 0.0836KJ
- hydrocarbon
- hydrocarbons are compounds containing carbon and hydrogen only
- alkanes are the simplest family of hydrocarbons
- alkanes; methane | ethane | propane | butane | pentane | hextane | heptane | octane
- Shortened Structural Formula; Octane | CH3 CH2 CH2 CH2 CH2 CH2 CH2 CH3
- Full Structural Formula - H-C-H
- General Formula = 2C + 2N