Fractional distillation of crude oil [CHEM]

Question

點解 Fractional distillation of crude oil 係 physical seperation？

個答案話：Since it is not breaking the bond.

但呢個 seperation 唔係分開左 petroleum 架咩？

點解會 not breaking the bond？

Answer 1

Favorite Answer

petroleum係mixture of different hydrocarbons

separation 只係 overcome左components之間的intermolecular force 而唔係hydorcarbon之間個covalent bonding...

所以no new substance is formed 係physical change

Source(s): own knowledge