Chemistry Topic 5 Fuels

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  • Created by: Meggie
  • Created on: 08-11-12 17:34
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  • Chemistry Topic 5 Fuels
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    • lead compounds that are added to petrol cause pollution.
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    • The high energy in a car, oxygen and nitrogen react to form oxides of nitrogen.
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    • fitting catalytic converyers to cars reduces air pollution (no burning of hydrocarbons)
    • platinum, palladium and rhodium are used as catalytic converters.
    • A hydrocarbon will burn incompletley in a low supply of oxygen to produce carbon and carbon monoxide
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    • altering the air to fuel ratio in car engines reduces air pollution.
    • if water and carbon dioxide are produced when a substance burns, it must have contained carbon and hydrogen.
    • Hyrogen will burn completely in oxygen to produce H2O and CO2
    • small molecules: boil at lower tempretures, are more flammble than big molecules and are less viscous than big molecules.
  • if water and carbon dioxide are produced when a substance burns, it must have contained carbon and hydrogen.
  • Hyrogen will burn completely in oxygen to produce H2O and CO2

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