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Surface tension is the tendency of liquid surfaces at rest to shrink into the minimum surface area possible. Surface tension is what allows objects with a higher density than water such as razor blades and insects (e.g. water striders) to float on a water surface without becoming even partly submerged.
Jun 26, 2024 · Learn what surface tension is and how it affects the shape and behaviour of liquids and solids. Explore the factors that influence surface tension and see how it varies among different substances.
- The Editors of Encyclopaedia Britannica
Learn what is surface tension, the tendency of fluid surfaces to shrink into the minimum area possible, and how it depends on intermolecular forces. Find out the SI unit, dimension, examples and methods of measurement of surface tension, and test your knowledge with MCQs.
- 4 min
- Presence of cohesive forces between liquid molecules and the surface tension of the liquid.
- When a soap bubble is charged, it expands.
- The dimensional formula of surface tension is: [ML 0 T -2 ].
- The surface tension of water at its boiling point is zero.
- The forces behind the origin of surface tension are a cohesive force and adhesive force.
Jun 6, 2019 · Learn how water molecules cohere to form a strong surface layer that resists external forces and allows some objects to float on water. Explore examples of surface tension in nature, science, and everyday life.
Jan 30, 2023 · Surface tension is the energy, or work, required to increase the surface area of a liquid due to intermolecular forces. Since these intermolecular forces vary depending on the nature of the liquid (e.g. water vs. gasoline) or solutes in the liquid (e.g. surfactants like detergent), each solution exhibits differing surface tension properties.
Feb 12, 2020 · Learn what surface tension is, how it is caused by intermolecular forces, and how it affects various phenomena such as water drops, insects, bubbles, and contact angles. Explore the units, formulas, and examples of surface tension in physics.
Oct 6, 2023 · Learn what surface tension is, how it is caused by intermolecular forces, and how it affects various phenomena. Find out the surface tension values of different liquids and see examples of surface tension in everyday life.
