Question

Which statement about van der Waals forces is true?

When the forces are weaker, a substance will have higher volatility.
When the forces are stronger, a substance will have lower viscosity.
When the forces are weaker, the boiling point of a substance will be higher.
When the forces are stronger, the melting point of a substance will be lower

Answer 1

When the forces are weaker, a substance will have higher volatility

Step-by-step explanation:

Answer 2

When the forces are weaker, a substance will have higher volatility

Step-by-step explanation:

Vander Waal's forces are the weakest among the intermolecular forces of attraction. This arises due to the creation of instantaneous dipole moments caused by an instantaneous shift of electrons is a molecule. Stronger the force, stronger will be the interaction between molecules which will in turn be held strongly. When the forces the weaker, the bonds between molecules can be broken easily as a result of which the substance will have a higher volatility.