Crude Oil
- Created by: Freya Woolley
- Created on: 06-05-15 18:47
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- Crude oil
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- Crude oil
- What is it?
- Formed by the remains of aniamls and plants that had died and burried millions of years ago
- A large mixture of hydro-carbons
- Not chemically combined
- Thick, black, viscous liquid that floats on water
- Hydrocarbon - molecules only containing H and C atoms
- Fractional distillation
- Liquids are separated if they have different boiling points in a mixture
- Fractions contain groups of molecules with similar molecular masses
- Crude oil- heated in furnace, passed into the lower part of the column
- Hydrocarbon vapours rise & condence at differnt points
- Drawn off trays by pipes and used for different things
- Hydrocarbon vapours rise & condence at differnt points
- Alkanes
- Saturated hydrocarbon
- C-C bonds are single covalent
- CnH2n+2
- Shorter chain- very flammable, very volatile, low b.p. low viscosity
- Longer chain- less flammable, less volatile, high b.p. higher viscosity
- Saturated hydrocarbon
- Combustion
- In plenty of O- complete combustion
- Hydrocarb + O --> CO2 + H2O
- In insufficient O- incomplete combustion
- Hydrocarb + O --> CO + H2O
- Carbon- monoxide binds to the Hb in the RBC instead of Oxygen
- In plenty of O- complete combustion
- What is it?
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