Chemistry

>

GCSE

Hydrocarbons

Question

Describe how a fractional distillation column separates crude oil fractions.

2 years ago

·

1 Reply

·

3021 views

R

Reese Cole


1 Answer

Carola Profile Picture
Carola Verified Sherpa Tutor ✓

Experienced GCSE Science and A level Chemistry tutor with Phd

21 reviews

The column is hot at the bottom and cool at the top. Crude oil is evaporated and its vapours travel up the column condensing at different temperatures. Substances with high boiling points condense at the bottom and substances with lower boiling points condense on the way to the top. Each fraction then contains hydrocarbon molecules with a similar number of carbon atoms and a similar range of boiling points.

I'm available for 1:1 private online tuition!

Click here to view my profile and arrange a free introduction.

Think you can help?

More Chemistry GCSE Questions
Sherpa Badge

Need a GCSE Chemistry tutor?

Get started with a free online introductions with an experienced and qualified online tutor on Sherpa.

Find a GCSE Chemistry Tutor