Explain the difference in the boiling points of the branched structures of pentane $(C_5H_{12})$. Explain how branching affects the boiling point of isomeric alkanes.

(N/A) For isomers of pentane $(C_5H_{12})$,as the number of branches increases,the boiling point decreases.
Explanation:
$1$. As the number of branched chains increases,the molecule tends to attain a more spherical shape.
$2$. $A$ spherical shape results in a smaller surface area of contact between the molecules.
$3$. Due to the smaller surface area,the magnitude of intermolecular van der Waals forces of attraction decreases.
$4$. Consequently,less energy is required to overcome these forces,leading to a decrease in the boiling point.