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Oct 6, 2023 · An example is mercury, whose surface tension at 25 °C is 485 mN/m. Suppose the cohesive forces are less than the adhesive forces. In that case, the liquid will spread out, thus, maximizing its surface area. This process is called wetting. Water has a surface tension of 72 mN/m and can easily wet surfaces.
The surface tension manifested itself by a rise or depression of the liquid at the free surface edge. Surface tension is also responsible for the creation of the drops and bubbles. It also responsible for the breakage of a liquid jet into other medium/phase to many drops (atomization). The surface tension is force per length and is measured by ...
The surface tension of water at 0°C is 75.5 dyne/cm. Calculate surface tension of water at 25°C. (α for water = 2.7×10 /°C) Derive an expression for excess pressure inside a drop of liquid. A raindrop of diameter 4 mm is about to fall on the ground. Calculate the pressure inside the raindrop.
Dimensional Formula of Tension. The dimensional formula of tension is given by, M 1 L 1 T-2. Where, M = Mass; L = Length; T = Time; Derivation. Since tension is a type of force, therefore, the dimensions of Tension = dimensions of Force
Jan 2, 2024 · The formula for surface tension (T) is given by, T = F/L. By the second law of motion, F = ma, where F represents the force applied, m is mass of the object and a is the acceleration generated with the help of force. Also, acceleration is change in velocity with unit m/s2, which can be written as dimension [L/T2]
The dimensional formula of surface tension is MT⁻², where: M represents mass, which is the dimension of force. T represents time, which is the dimension associated with the rate of change. The exponent -2 indicates that surface tension is the force per unit length (length being the denominator) or energy per unit area.
Jun 26, 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. A razor blade also can be supported by the ...
