The surface tension of a liquid is affected by

Options

A. intermolecular forces among the molecules
B. temperature
C. the addition of active agent
D. All of the above

Answer

D

Explanation

The factor which affect the surface tension of liquid are
Surface tension is higher for the liquids having greater intermolecular forces between their molecules.
Surface tension of the liquid decreases with increase in temperature. It is because with increase in temperature the intermolecular forces of attraction between liquid molecules decreases.
Due to the addition of surface active agent, i.e., Surfactants (e.g., soap), surface tension decreases.