Question

What types of intermolecular forces are collectively named van der waals forces after johannes van der waals, who developed the equation for predicting the deviation of gases from ideal behavior?

Answer 1

Dispersion forces or London dispersion forces are collectively referred to as Van der Waals forces. These forces are temporary and arise from the relative position of electrons in one atom to another. If the electrons become distributed in an asymmetrical manner, the negative charge is concentrated at one end of the particle and a positive charge is concentrated at the other. These forces are also called induced dipole-induced dipole attraction.