Cracking & Alkenes (OCR GCSE Chemistry A (Gateway Science Suite)): Flashcards
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Practise the cards
11 cards from this deck
Types of hydrocarbons in crude oil
Types of hydrocarbons in crude oil
Alkanes and alkenes
Saturated hydrocarbons
Saturated hydrocarbons
Alkanes (no double bonds, only single covalent bonds)
General formula for alkanes
General formula for alkanes
Unsaturated hydrocarbons
Unsaturated hydrocarbons
Alkenes (at least one C=C double bond)
General formula for alkenes
General formula for alkenes
What cracking does to long hydrocarbons
What cracking does to long hydrocarbons
Breaks them into shorter, more useful molecules
Products when decane is cracked
Products when decane is cracked
Octane and ethene
Conditions for catalytic cracking
Conditions for catalytic cracking
High temperature and a catalyst
Conditions for steam cracking
Conditions for steam cracking
Steam and high temp, 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, good for cars to quickly change speeds