surface tension

[Kim 3L]

How does temperature affect the surface tension of a liquid? How is surface tension related to the behavior of liquids at the interface with air?

[RiaCasas2L]

As temperature increases, surface tension decreases. When temperature increases, molecular thermal activities also increase and as a result of intermolecular cohesive force decreases and surface tension decreases. At liquid–air interfaces, surface tension results from the greater attraction of liquid molecules to each other (due to cohesion) than to the molecules in the air (due to adhesion).

[Upaush Sharma]

I believe that a general rule is that surface tension decreases as temperature decreases because the increased temperature causes molecules to have more energy which decreases the forces between molecules. Also, surface tension is caused by the interface of liquids with surrounding air since the liquid molecules have greater attraction to eachother than the air. This causes there to be an inward force which also makes the liquid contract.

[Arisa_Matsuzaki_3K]

Generally, as the temperature of a liquid increases, its surface tension decreases. This happens because higher temperatures provide more energy to the molecules of the liquid. This additional energy allows the molecules to move more vigorously, weakening the cohesive forces at the surface of a liquid that contribute to surface tension. The behavior of liquids is largely governed by surface tension. Surface tension is responsible for phenomena like the formation of droplets and bubbles. The liquid tends to minimize its surface area, leading to the spherical shape of droplets and bubbles.