Why do branch chained isomers have lower boiling point than straight chain equivalents?

As branching increases the boiling point decreases because there are fewer points of contact. This also means van der Waals forces are weaker in branch chained isomers and thus less energy is required to overcome these forces. 

KL

Related Chemistry A Level answers

All answers ▸

What are the different types of bonding in chemicals?


How do you classify an alkene using Cahn-Ingold-prelog rules


Explain why the second ionisation energy of boron is higher than the first ionisation energy of boron?


Can you give and explain the mechanism for the reaction between aqueous Sodium Hydroxide (NaOH) and Chloroethane at room temperature? What is a competing reaction which may occur and how would you promote this reaction?