van der Waals force

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van der Waals force

[′van dər ‚wȯlz ‚fȯrs]
(physical chemistry)
An attractive force between two atoms or nonpolar molecules, which arises because a fluctuating dipole moment in one molecule induces a dipole moment in the other, and the two dipole moments then interact. Also known as dispersion force; London dispersion force; van der Waals attraction.
References in periodicals archive ?
The preceding sections showed how we can think of world economic geography as a balance between concentration forces and dispersion forces.
This means that as trade costs fall further, so the clustering force becomes weaker, and location comes to be determined by factor prices, a dispersion force.
Thus, the work of adhesion arises only from the dispersion forces.
The major contribution to the total work of adhesion in this case comes from dispersion forces.
AB] are the total work of adhesion, work of adhesion due to dispersion forces and work of adhesion because of acid-base interactions, respectively.