Question

Some of the following properties of liquids arise because of the molecular interaction and thermal energy:

• A. Vapour pressure:
• B. Surface tension
• C. Viscosity
• D. Dipole moment

Answer 1

Answer: (A), (B), (C)

Viscosity
Vapour pressure:
Surface tension

Viscosity depends on both molecular interaction and therml energy with in molecular attraction vapour pressure decreases and with increase in thermal energy vapour pressure increses.

Surface tension is depepns on both molecular interaction and thermal energy with increase in molecular interaction surface tension increases.

Viscosity is also depends on Molecular interaction, with increase in molecular attraction viscosity increses.

Dipole moment does not depends on thermal energy and molecular interaction.