Cracking Flashcards
1
Q
What is thermal decomposition?
A
Breakdown of a compound with heat
2
Q
Explain why cracking of crude oil makes them more useful?
A
Large molecules broken into smaller ones
Smaller molecules are more useful as fuels
Compounds with large molecules do not flow easily
Compounds with large molecules in less demand
To produce alkenes or make polymers
3
Q
What is the test for alkene?
A
Mix bromine water with alkene
Turns colourless
4
Q
Why are alkenes more useful than alkanes?
A
Alkenes Used to make polymers
Alkene is more reactive than alkane
Alkene can be used as a starting material for other useful chemicals
5
Q
Explain trend in boiling point of alkanes
A
As Alkene gets larger, boiling point increases
Intermolecular forces increases
More energy to break forces
