Which statement about van der waals forces is true?
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.

A

Explanation:

Van der Waals forces are the weak electric forces of attraction between molecules and their strength is dependent on the distance between the molecules. The longer the distance between the molecules the weaker the forces. Weaker Van der Waals forces mean that molecules can easily escape from the liquid  - hence meaning higher volatility.

a boiling water reactor does not boil the water. a pressurized water reactor boils the water faster. a pressurized water reactor is heated directly by the core. a pressurized water reactor does not use fission.

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