What molecular shape typically results in a higher boiling point?

The molecular shape that typically results in a higher boiling point is associated with linear molecules. Linear molecules often have a greater surface area compared to their branched counterparts, which allows for more effective van der Waals forces (also known as London dispersion forces) between the molecules. These intermolecular forces require more energy to overcome, which translates to a higher boiling point.

In contrast, branched molecules tend to have a lower boiling point due to their reduced surface area, making it more challenging for these intermolecular forces to act effectively. Thus, as the linear shape maximizes the area available for molecular interactions, it leads to stronger intermolecular forces and consequently a higher boiling point. While circular and triangular shapes might suggest particular structural features, they generally do not possess the same characteristics regarding surface area and intermolecular interactions that are significant in determining boiling points.