Properties of Hydrocarbons (OCR GCSE Chemistry A (Gateway Science Suite)): Flashcards
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What are hydrocarbons?
What are hydrocarbons?
Compounds made of only hydrogen and carbon atoms
Three key features of hydrocarbons
Three key features of hydrocarbons
Boiling point, viscosity, flammability
Boiling point definition
Boiling point definition
Temperature at which substance changes from liquid to gas
Intermolecular forces in long-chain hydrocarbons
Intermolecular forces in long-chain hydrocarbons
Strong
Long-chain hydrocarbons: boiling point
Long-chain hydrocarbons: boiling point
Higher boiling points
Short-chain hydrocarbons: boiling point
Short-chain hydrocarbons: boiling point
Lower boiling points
Boiling point of ethane ()
Boiling point of ethane ()
Boiling point of heptane ()
Boiling point of heptane ()
Viscosity definition
Viscosity definition
Resistance to flow or thickness of a liquid
Viscosity of larger hydrocarbons
Viscosity of larger hydrocarbons
Higher viscosity (thicker, flow less easily)
Flammability definition
Flammability definition
How easily a hydrocarbon can combust
Flammability of smaller vs larger hydrocarbons
Flammability of smaller vs larger hydrocarbons
Smaller: more flammable; Larger: less flammable