Fractiional distilation

Question 1

what is crude oil

Answer 1

mixture of hydrocarbons

Question 2

fractional distilattion PROCESS

Answer 2

1) crude oil is vaporised at 350 degrees
2) crude oil enters a fractionating collumn wih a temperature gradient. the fractionalting collumn is hot at the bottom and cooler at the top.
3) longer hydrocarbon chains do not vaporise they just run down to the bottom and form gooey residue
4) shorter hydro carbon chains dont condense they are drawn off as gases at the top of the collumn as they have a lower boiling point.
5) differnet chain hydro carbons have differnect boiling points so each fraction condenses at a differnet temperature.

Question 3

what is the general formula of a cycloalkane

Answer 3

CnH2n