Cracking & Alkenes (AQA GCSE Chemistry): Flashcards
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Type of hydrocarbon: alkanes
Type of hydrocarbon: alkanes
Saturated hydrocarbons
Bonding in alkanes
Bonding in alkanes
Only single covalent bonds between carbon atoms
General formula for alkanes
General formula for alkanes
Type of hydrocarbon: alkenes
Type of hydrocarbon: alkenes
Unsaturated hydrocarbons
Bonding in alkenes
Bonding in alkenes
At least one double bond between two carbon atoms
General formula for alkenes
General formula for alkenes
Definition of cracking
Definition of cracking
Breaking longer hydrocarbons into shorter, useful molecules
Example: decane cracking products
Example: decane cracking products
Octane and ethene
Catalytic cracking conditions
Catalytic cracking conditions
High temperature and a catalyst
Steam cracking conditions
Steam cracking conditions
Steam and high temperature (no catalyst)
Why cracking is essential
Why cracking is essential
Higher demand for shorter-chain hydrocarbons
Why shorter hydrocarbons make better fuels
Why shorter hydrocarbons make better fuels
More flammable