What are the intermolecular forces of CHF3?
I would say dipole-dipole interactions.
This means that there exist a dipole moment in the molecule. Since fluorine is highly electronegative, it will attract the electrons to itself, leaving the hydrogen end of the molecule positive. This allows for other fluoroform molecules to get attracted to the positive side of the molecule, by allowing the negatively-charged fluorine side get attracted to the hydrogen side of the molecule.