Surface tension fact file

1. Those factors which increases cohessive forces between liquid molecules increases surface tension and those decreases cohesive forces decreases surface tension.
2. If impurity is completely soluble , then on mixing it in the liquid , its surface tension increases.
3. With the increase in temperature surface tension decreases.
4. Surface tension depands on the medium present on other side of the liquid surface.
5. The surface tension decreases due to electrification.
6. On mixing partial soluble impurities in a liquid , its surface tension decreases like mixing of detergent in water decreases surface tension of water.