How is crude oil separated into fractions?

The crude oil is placed into large tanks, which are heated at the bottom, creating a gradient whereby the column is cooler at the top. The heat causes the oil to evaporate, and each fraction will reach a different height before it condenses due to the cooler temperature.

SC

Related Chemistry GCSE answers

All answers ▸

Why does grinding a solid reactant down into smaller lumps increase the rate of a reaction? (2/3 marks)


What are the differences between covalent bond and an ionic bond? And can you give an example of each?


Write a word equation for the reaction between lithium bromide and chlorine gas.


Why does increasing the concentration of a reactant increase the rate of reaction?