Fossil Fuels Flashcards
What is crude oil made of?
Compounds (hydrocarbons)
What are some uses of crude oil?
Liquefied petroleum gas, chemicals, petrol for vehicles, jet fuel, paraffin for heating and lighting, diesel fuels, oils, waxes, polishes, fuel, bitumen for roofing and roads.
The bigger the hydrocarbon, the…
Less easily it flows (more viscous)
Less easily it ignites (more flammable)
Less volatile it is (less likely to vaporise)
Higher the boiling point
Name the stages of separating crude oil.
Oil is heated and evaporates.
The vapours are allowed to condense at a range of different temperatures.
Fractions are formed (each containing hydrocarbons with similar numbers of carbon atoms)
Define fuel.
A substance that burns giving out energy.
What do hydrocarbons produce when burned?
Carbon dioxide and water.
What is coal made from?
Vegetation in swamps.
What is oil formed from?
Marine plants and animals.
When is natural gas formed?
At the same time as coal and oil.