How fractional distillation works
How fractional distillation works

Crude oil is heated until most of it becomes vapour. The vapour enters a tall fractionating column that is hot at the bottom and cooler at the top.
Step-by-step lessons on Edexcel GCSE Chemistry 9.1.2 Fractional distillation of crude oil and its fractions. Each one builds up to exam-style questions. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.