Figure 1: The fractionating column has a temperature gradient. Small molecules with low boiling points rise to the top; large molecules condense near the bottom.
This diagram covers Fractional Distillation Column within Crude Oil for GCSE Chemistry. Topic 37: Crude Oil It is section 2 of 13 in this topic. Focus on the labels, the relationships between parts, and the explanation that turns the diagram into an exam-ready answer.
Practice questions for Crude Oil
A hydrocarbon is a compound that contains only:
Explain how fractional distillation separates crude oil into different fractions.
Quick recall flashcards
What is a hydrocarbon?
A molecule made of hydrogen and carbon atoms ONLY
What is crude oil?
A mixture of many different hydrocarbons