9189454
Descrição
Mapa Mental por Lilac Potato, atualizado more than 1 year ago
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Criado por Lilac Potato
mais de 7 anos atrás
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C7 - Organic Chemistry
- Crude oil
- Provides fuel for most modern transport
- Diesel oil
- Kerosene
- LPG
- Heavy fuel oil
- Diesel oil
- Provides fuel for most modern transport
- Alkanes and
alkenes
- Alkanes
- C_n H_2n+2
- Bromine water
stays orange
- C_n H_2n+2
- Alkenes
- C_n H_2n
- Bromine water
decolourises
- C_n H_2n
- Alkanes
- Fractional Distillation
- Oil is heated until most is gas
- Gases enter fractionating column, liquid is drained off
- Longer hydrocarbons have higher boiling points, condense back into liquids
- Shorter ones drain out later on towards top of column
- Shorter ones drain out later on towards top of column
- Longer hydrocarbons have higher boiling points, condense back into liquids
- Gases enter fractionating column, liquid is drained off
- Oil is heated until most is gas
- Hydrocarbons
- Longer chain
- Boiling point increases
- Viscosity increases
- Colour darkens
- Number of carbon atoms increases
- Boiling point increases
- Combustion
- hydrocarbon + oxygen = carbon dioxide + water (+ energy)
- Both carbon and
hydrogen are oxidised
- Hydrocarbons used as fuels
because of energy released
when they combust completely
- hydrocarbon + oxygen = carbon dioxide + water (+ energy)
- Longer chain
- Cracking
- Produces an alkene
and an alkane
- Makes long chain
hydrocarbons shorter
- Heat them to
vaporise them
- Catalytic cracking
- Vapour passed over hot
powdered aluminium
oxide catalyst
- Splits apart molecules
- Splits apart molecules
- Vapour passed over hot
powdered aluminium
oxide catalyst
- Steam cracking
- Mix with steam
- Heat to a very
high temperature
- Heat to a very
high temperature
- Mix with steam
- Catalytic cracking
- Heat them to
vaporise them
- Thermal decomposition reaction
- Produces an alkene
and an alkane
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