Asked by Jasmine Gardiner on Jul 31, 2024

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A branched alkane has ________ boiling point relative to the isomeric linear alkane. There are ________ London force interactions in the branched alkane.

A) a higher; stronger
B) a higher; weaker
C) a lower, stronger
D) a lower; weaker
E) the same; similar

Boiling Point

The temperature at which a liquid changes to a gas at a given pressure, characteristic for each specific substance.

Branched Alkane

Hydrocarbons featuring a tree-like structure, where carbon chains deviate from a straight chain due to side chains.

London Force

Weak, temporary van der Waals forces arising from the instantaneous polarization of molecules due to the movement of electrons.

  • Project the boiling point and density of alkanes by understanding their molecular framework.
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VP
Vishnu PandhareAug 06, 2024
Final Answer :
D
Explanation :
A branched alkane has a lower boiling point relative to the isomeric linear alkane because the branches disrupt the close packing of molecules and decrease the surface area available for intermolecular interactions, such as London forces. However, there are still strong London force interactions in the branched alkane because its polarizability is similar to that of the linear alkane.