Question

5 ways of reducing surface tension

Answer 1

1. Surface tension is not the same in every liquid. Some liquids such as oil and kerosene can destroy surface tension in water.

2. Adding soap or detergent reduces surface tension in water.

3. Increasing the temperature of the liquid reduces surface tension.

Answer 2

Surface tension can change with the change in a medium that is just above the layer of the liquid's surface.

Explanation:

• Pouring any oil or oily compounds (such as kerosene) on the free surface of the water will reduce the surface tension.
• $O_{2}$ in the atmosphere directly affects the surface tension of the liquid.
• If we increase the temperature of the water, then there is a high possibility of the surface tension of the water getting reduced, due to the fact that the net force of attraction is decreased.
• Mixing surfactants or emulsifiers into the water will decrease the surface tension.
• If the water is subjected to electrification, then the surface tension will be reduced.