Why do fluorocarbons have lower boiling point than hydrocarbons

1.	Why do fluorocarbons have lower boiling point than hydrocarbons
Answer» Answer: The INCREASED boiling point is easily explained by the stronger dipole-dipole attraction. The graph shows that the polar effect DIMINISHES as the size of the molecule increases. ... However, above 4 CARBON atoms the boiling points of the perfluorocarbons are less than the hydrocarbons INDICATING weaker attractive forces.

Answer»

Answer:

The INCREASED boiling point is easily explained by the stronger dipole-dipole attraction.

The graph shows that the polar effect DIMINISHES as the size of the molecule increases. ...

However, above 4 CARBON atoms the boiling points of the perfluorocarbons are less than the hydrocarbons INDICATING weaker attractive forces.

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