Fractional Distillation Flashcards
What do we do in fractional distillation
We separate a mixture of different liquids
What is crude oil
A mixture of lots of different hydrocarbons, most of which are alkanes
How are different compounds in crude oil separated
Fractional distillation
How is the fractionating column
At the bottom it’s not so it’ll have a high boiling point and at the top it’s cool so it’ll have a low boiling point
What do we start of by doing in fractional distillation
Heating up the mixture
What will happen to both the liquids once they’ve heat up
They’ll start to evaporate
What’ll happen to the liquid with the low boiling point
It’ll evaporate more easily
What happens if the two liquids have similar boiling points
It’ll be harder to seperate
Why is fractions distillation used
To produce usable products such as petrol from crude oil
