Van der Waals force is a type of intermolecular force that occurs between molecules. It is a weak force that arises due to temporary dipoles in molecules, which attract each other. This force is responsible for the attraction between non-polar molecules, such as in the case of CH4.
Van der Waals force affects the properties of CH4 by increasing its boiling point and melting point. This is because the force of attraction between molecules is stronger, making it more difficult for the molecules to separate from each other. Additionally, Van der Waals force contributes to the overall stability of the molecule.
Van der Waals force is different from other types of intermolecular forces because it is a weak force that is only present in non-polar molecules. Other intermolecular forces, such as hydrogen bonding and dipole-dipole interactions, are stronger and are found in polar molecules.
Yes, Van der Waals force can be broken. This force is relatively weak, so it can be overcome by other stronger forces, such as ionic or covalent bonds. Additionally, changes in temperature and pressure can also affect the strength of Van der Waals force.
The size of molecules can affect Van der Waals force because larger molecules have a larger surface area, which allows for more points of contact between molecules. This leads to a stronger Van der Waals force between the molecules. Conversely, smaller molecules have a smaller surface area and therefore, a weaker Van der Waals force.