- #1
nishant
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the surface tension of a liqud at its boiling point is what?
Surface tension is a physical property of liquids that describes the force exerted on the surface of a liquid due to the attraction between molecules. It is the ability of a liquid to resist external forces and maintain its shape.
At the boiling point of a liquid, the surface tension decreases. This is because as the temperature increases, the kinetic energy of the molecules also increases, causing them to move more vigorously and break the cohesive bonds that create surface tension.
The surface tension of a liquid can influence its boiling point. If the surface tension is high, it will require more energy to overcome the cohesive forces and reach the boiling point. On the other hand, a low surface tension will result in a lower boiling point as less energy is needed to break the bonds.
The surface tension of a liquid can be affected by various factors such as temperature, pressure, and the type of molecules present in the liquid. For example, an increase in temperature or a decrease in pressure can cause a decrease in surface tension.
Surface tension can be measured using a tensiometer, which measures the force needed to stretch a liquid surface. At the boiling point, the surface tension can be determined by measuring the force needed to break the surface and form bubbles.