Question

Which statement about van der Waals forces is true? MULTIPLE CHOICE!!

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

Answer 1

It’s a

Explanation: it took the test on edge

Answer 2

Van der Waals are weak, short-range electrostatic attractive forces between uncharged molecules, arising from the interaction of permanent or transient electric dipole moments.
D.When the forces are stronger, the melting point of a substance will be lower.