What is the structural isomer of C8H18 with the lowest boiling point?

Answer 1

In organic chemistry, alkanes such as C8H18 have structural isomers. The more these isomers are branched the lower the boiling point is. The reason for this, is that un-branched alkanes have a higher mass area, they are more likely to have more potential points of attachments for other atoms or molecules which would then raise intramolecular forces thus increasing boiling points. The structural isomer of C8H18 that has the boiling point is systematically known as 2,2,3,3-tetramethylbutane.

Answer 2

The structural isomer of C8H18 with the lowest boiling point is 2,2,4-trimethylpentane. This isomer has a lower boiling point compared to other C8H18 isomers due to its more compact structure, which results in weaker intermolecular forces and easier vaporization.