Question

Why do branched hydrocarbons have a lower boiling point?

Answer 1

Answer:

Branched hydrocarbons have low boiling point due to weak vanderwall force between them.

As,

ln hydrocarbons vanderwall force increases.

and

V.W.f ∝ boiling point

Also,

V.W.f ∝surface area.

We know that branched hydrocarbons have less surface area than open chain hydrocarbons so there vanderwall force will be weak and thus ,

they make weak attraction.

So , their boiling point is low.