Question

Which statement about van der Waals forces is true?

Here are the options:

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

The answer is,

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

Just took the test (:

Answer 2

The answer is A. When the forces are weaker, they will not be able to hold the particles of the substances together; therefore, the substance will be observed as being volatile.