Question

Surface tension of water by capillary rise and effect of detergents

Answer 1

Answer:

The rise in capillary tube decreases with addition of detergent in pure water. With more addition of detergent, rise becomes lesser and lesser. The detergent reduces the surface tension of water.

Answer 2

Surface tension of water by capillary rise and effect of detergents can be described as:

•Capillary rise decreases with increase in detergent in pure water.

•Thus detergents reduce the surface tension of water.

• As the detergent level increases in water, capillary rise even becomes lesser .

•This can be an advantage. Due to less surface tension,we can wash clothes so that dirt and grease can be removed easily by water with detergent.

•Surface tension mainly depends upon the nature of the liquid and temperature.