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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.
Surface tension is the elastic tendency of fluid surfaces that lets insects to float on water. Learn the surface tension of water and the formula to find the surface tension of the given liquid @BYJU’S.
Sep 24, 2024 · surface tension, property of a liquid surface displayed by its acting as if it were a stretched elastic membrane. This phenomenon can be observed in the nearly spherical shape of small drops of liquids and of soap bubbles. Because of this property, certain insects can stand on the surface of water.
Oct 6, 2023 · Surface tension is a phenomenon that occurs due to the cohesive forces of liquid molecules. The molecules on the surface of a liquid are attracted by their neighbors from the sides and bottom. As a result, the liquid surface forms a “skin” with minimum surface area and energy. Surface Tension. What Causes Surface Tension.
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.…
Feb 12, 2020 · Surface tension is a phenomenon in which the surface of a liquid, where the liquid is in contact with a gas, acts as a thin elastic sheet. This term is typically used only when the liquid surface is in contact with gas (such as the air). If the surface is between two liquids (such as water and oil), it is called "interface tension."
Surface tension is the amount of energy required to increase the surface area of a liquid by a certain amount. It is often measured in joules per square meter (J/m^2 J /m2).
The force per unit length perpendicular to a line drawn in the surface of the liquid is the surface tension. Its SI unit is newtons per metre, and its CGS unit is dynes per centimetre. The dimensions are MT −2. I have seen various symbols, such as \(T , S \) and \( \gamma \) used for surface tension.
The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension. The molecules at the surface do not have other like molecules on all sides of them and consequently they cohere more strongly to those directly associated with them on the surface.
The tendency of surface tension is always to reduce the surface area. Surface tension thus flattens the curved liquid surface in a capillary tube. This results in a downward force in mercury and an upward force in water, as seen in Figure 11.31 .
