which statement about van der waals forces is true?\no when the forces are weaker, a substance will have…

which statement about van der waals forces is true?\no when the forces are weaker, a substance will have higher volatility.\no when the forces are stronger, a substance will have lower viscosity.\no when the forces are weaker, the boiling point of a substance will be higher.\no when the forces are stronger, the melting point of a substance will be lower.

which statement about van der waals forces is true?\no when the forces are weaker, a substance will have higher volatility.\no when the forces are stronger, a substance will have lower viscosity.\no when the forces are weaker, the boiling point of a substance will be higher.\no when the forces are stronger, the melting point of a substance will be lower.

Answer

Brief Explanations:

Van der Waals forces are intermolecular forces. Weaker van der Waals forces mean less energy is needed to separate molecules. Higher volatility means a substance changes to gas more easily. Weaker forces lead to higher volatility as molecules can escape more readily. Stronger forces lead to higher viscosity, higher boiling - points, and higher melting - points as more energy is needed to overcome the intermolecular attractions.

Answer:

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