London Dispersion Force is a type of intermolecular force that occurs between non-polar molecules. It is a weak force that results from temporary dipoles formed by the uneven distribution of electrons in a molecule.
London Dispersion Force can affect the boiling point, melting point, and viscosity of substances. The stronger the London Dispersion Force, the higher the boiling and melting points will be, and the more viscous the substance will be.
All molecules, regardless of polarity, can experience London Dispersion Force. However, it is typically stronger in larger, more complex molecules with a greater number of electrons.
No, London Dispersion Force is the weakest of all intermolecular forces. It is always present to some degree, but it is typically overshadowed by other stronger forces such as hydrogen bonding or dipole-dipole interactions.
As temperature increases, the strength of London Dispersion Force decreases. This is because higher temperatures cause molecules to move faster, making it more difficult for temporary dipoles to form and for the force to be maintained.