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| Question | Answer |
| Fractional Distillation is the breaking up of crude oil into its various fractions (Hydrocarbons) | This is done in a fractionating column, and results a variety of other fuels being produced. |
| The smaller the hydrocarbon, the more volatile and the less viscous it becomes. The column allows each fraction to evaporate at different points, | Each hydrocarbon has different boiling points, which allows them to evaporate at different parts of the column. The temperature ranges from 25 - 350 degrees Celsius. |
| The first fraction - Refinery Gases- is used in gas for stoves amongst other things. | As it is the smallest fraction, it is very flammable, volatile and is not very viscous. It evaporates a 25 degrees Celsius. |
| The next fraction is gasoline (Petrol). This is used for fuels in cars, and has a very high demand. | As it is far up the column, it's flammable, volatile and is not very viscous. |
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