Statetwomethodsbywhichthesurfacetensionofaliquidcanbereduced.
1. By adding a surfactant or detergent to the liquid: Surfactants are substances that lower the surface tension of a liquid by disrupting the hydrogen bonds between the liquid molecules at the surface. This reduces the cohesive forces between the molecules, causing the surface tension to decrease.
2. By increasing the temperature of the liquid: Increasing the temperature of a liquid can also reduce its surface tension. This is because higher temperatures increase the kinetic energy of the molecules, causing them to move more freely and disrupt the hydrogen bonding at the surface. As a result, the surface tension decreases.