Organic Chem L2 (Fractional Distillation) Flashcards
Crude oil is a … … that comes from the earths crust and is very important.
Fossil fuel
The compounds in a mixture aren’t chemically combined, so they can be seperated using methods such as … …
Fractional distillation
Crude oil is used to make fuels for transport, heating and generating electricity. It is also used to make hundreds of …
Petrochemicals
Crude oil is … meaning it will eventually run out
Finite
Crude oil forms over millions of years. It’s formed from the remains of many tiny sea animals and plants, called …
Plankton
Crude oil is often found trapped in … rocks under the sea bed
Sedimentary
… or drilling platforms are used to drill through the sea bed to obtain the oil
Oil rigs
Fractional distillation is a process used to separate a … of liquids that have different … …
mixture, boiling points
Fractional distillation is used to separate … into useful products called …
crude oil, fractions
Crude oil is a mixture of …
Hydrocarbons
In a … …, the column is hot at the bottom and cooler at the top
Fractionating column
Heavy fractions (containing large …) have high boiling points and … near the bottom of the column
molecules, condense
Lighter fractions (containing small …) have lower … … and therefore condense near the top of the column
molecules, boiling points
Fractions have a couple differences such as
- the number of carbon and hydrogen atoms they contain
- boiling point
- ease of ignition
- viscosity (thickness)
Generally, the … a hydrocarbons is, the … its boiling point is
larger, higher
