Question

A substance with a high boiling point will also likely have A) a low melting point B) a low vapor pressure C) weak intermolecular interactions D) low surface tension E) low viscosity

Answer 1

Answer: Option (B) is the correct answer.

Explanation:

Boiling point is defined as the temperature at which vapor pressure of a liquid becomes equal to the atmospheric pressure.

Surface tension is defined as the attractive forces experienced by the surface molecules of a liquid by the molecules present beneath the surface layer of the liquid. More stronger are the intermolecular forces present within the molecules of a liquid more will be its surface tension and lower will be its vapor pressure.

Hence, higher will be the boiling point of the liquid.

And, viscosity is defined as the ability of a liquid to resist its flow. When a substance has high viscosity then it is known as a viscous substance.

Thus, we can conclude that a substance with a high boiling point will also likely have a low vapor pressure.