Properties of hydrocarbons (AQA GCSE Chemistry Combined Science): Flashcards

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Properties of hydrocarbons
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What property determines hydrocarbon properties?

Molecular size

Examples of small hydrocarbon molecules

Methane and ethane

Example of large hydrocarbon molecule

Heavy fuel oil

Boiling point of small hydrocarbon molecules

Low

Boiling point of large hydrocarbon molecules

High

Viscosity of small hydrocarbon molecules

Low (runny and thin)

Viscosity of large hydrocarbon molecules

High (thick and sticky)

Flammability of small hydrocarbon molecules

Highly flammable

Flammability of large hydrocarbon molecules

Less flammable

Products of complete combustion of hydrocarbons

Carbon dioxide (CO2\text{CO}_2) and water (H2O\text{H}_2\text{O})

Condition required for complete combustion

Plenty of oxygen

Principle behind fractional distillation of crude oil

Different boiling points

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Hydrocarbons: Fuel & Feedstock

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Hydrocarbons: Fuel & Feedstock

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Hydrocarbons: Fuel & Feedstock

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Hydrocarbons: Fuel & Feedstock

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