Development of the Modern Freezer. Bacteria are usually the cause of food decay, but they can't grow as well or at all in freezing temperatures, which are at 32 degrees Fahrenheit (0 degrees Celsius) or lower.
HF- polar molecule: dipole-dipole forces. There are also dispersion forces and H bond between HF. BF3- nonpolar: dispersion forces. Ar- Dispersion forces between Ar atoms.
2. Dipole-Dipole Interaction. 3. Hydrogen bonding. The strength of the intermolecular forces are as follows: dispersion forces. Dispersion Forces: These forces arise between molecules due to attraction of electrons to nuclei of other molecules or due to momentary dipoles when molecules approach each other.