Does CF4 or CBr4 have a higher boiling point

Answer 1

CF4 has a higher boiling point compared to CBr4.
This is because CF4 is a nonpolar molecule, and CBr4 is a polar molecule. Nonpolar molecules tend to have weaker intermolecular forces, such as London dispersion forces, compared to polar molecules which can have dipole-dipole interactions and hydrogen bonding. The stronger intermolecular forces in CF4 result in higher boiling points compared to CBr4.