GCSE Chemistry – Fractional Distillation – Crude Oil | Hydrocarbons (2026/27 exams)

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*** WHAT’S COVERED ***
1. Crude Oil
* How crude oil is formed from the remains of ancient biomass.
* Its composition as a mixture of hydrocarbons, primarily alkanes.
* Why crude oil is classified as a finite, non-renewable resource.
2. Fractional Distillation
* The principle of separating a mixture based on different boiling points.
* The function of a fractionating column with its temperature gradient.
* Step-by-step explanation of how crude oil is separated into different fractions.
3. Fractions and their Properties
* The relationship between the length of hydrocarbon chains and their boiling points.
* Examples of different fractions, including bitumen, heavy fuel oil, diesel, kerosene, petrol, and LPG.
* The uses of various fractions, from road surfacing to fuel for cars and aeroplanes.
* The concept of petrochemicals and their use as feedstock.

*** CHAPTERS ***
0:00 Introduction
0:19 What is Crude Oil?
1:57 What is Fractional Distillation?
2:25 The Process of Fractional Distillation
4:05 Properties and Uses of Fractions

*** PLAYLISTS ***

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