How is crude oil separated into fractions?
Crude oil is composed of many hydrocarbons. The crude oil is heated to evaporate it and the vapour rises. There is a temperature gradient up the column (hotter at the bottom, colder at the top). The different hydrocarbons have different boiling points, so condense at different levels and can be collected here.
DD
Related Chemistry GCSE answers
All answers ▸Why does HCl dissociate in water but not in methylbenzene?
How do I work out what the ionic charge is for different elements in the periodic table?
Describe the bonding present in a piece of sodium metal.
Please write the equation to form the compound Zinc Chloride?