Crude Oil Flashcards
(15 cards)
What is crude oil originally made from
Ancient biomass which has been compressed by rock for thousands of years
What is crude oil a mixture of
A mixture of hydrocarbons
What are hydrocarbons made out of
Hydrogen and carbon atoms
What are most of the hydrocarbons in crude oil?
Alkanes
What is an Alkane
A homogoulus series
What is the formula for alkanes
CnH2n + 2
What are alkane molecules
Saturated with single bonds
4 examples of alkanes
Methane , ethane , propane and butane
What happens to the alkanes when combustion occurs
Breaks down into carbon dioxide and water
What happens when Alkanes grow bigger
Become more viscous , less flammable and have higher boiling points
What is fractional distillation
The method of separating molecules from crude oil into fractions using a fractional column
What is the temperature of a fractional column
Hot at the bottom and cold at the top
What molecules break down in the column
Big at the bottom and tiny at the top
What are alkenes
Unsaturated and have double carbon bonds
What happens when Alkene is added to bromine water
Goes colourless
