Cracking Flashcards
0
Q
What is needed to crack long molecules?
A
Heat (thermal decomposition) of 400-700 degrees
Catalyst - aluminium oxide
….. Needed to break strong covalent bonds
1
Q
What is cracking?
A
Crude oil fractions being split into smaller alkanes and alkenes that are more useful (eg petrol)
2
Q
How do you crack liquid paraffin in a lab?
A
Pass vaporised paraffin over aluminium oxide to give octane + ethene
