developing Fuels mind map
- Created by: DawnWhisker
- Created on: 11-04-14 13:42
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- Developing Fuels
- Entropy
- Everything tends to choas
- reactions tend to the side of least entropy
- mixtures with more than 1 element have more entropy
- Developing new fuels
- LPG
- Electricity - hydrogen cells
- Biofuel
- Alkanes
- CnH2n+2
- saturated hydrocarbon chains
- straight chains
- Alkenes are unsaturated
- CnH2n
- Enthalpy
- Exothermic give out heat
- combustion
- Endothermic take in heat
- bond enthalpies are not exact
- Hess' law
- q=mc(delta)T
- Exothermic give out heat
- gas Volume
- 24dm^3 in controlled
- 22dm^3 at standard
- moles= volume (DM)/24
- Catalysts
- heterogenieous- reactions occur in different state
- homogeneous- reactions occur in the same state
- Bond angles
- 109.5 in methane
- vary depending on number of bonds and lone pairs
- Petrol
- a fractional distillation column sorts the individual layers
- large molecules can be cracked to turn them into small chains
- you can change long chains into isomers with branches
- Entropy
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