Table of Contents
What is surface tension explain with example?
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.
What is surface tension and its unit?
Newton per metre
Surface tension/SI units
What is surface tension in states of matter?
Surface tension is the amount of energy required to increase the surface of the liquid by unit area. In other words, it is also the property of the liquid surface that resists force.
What is surface tension experiment?
Fill a bowl with water. Shake the black pepper onto the surface of the water (Notice how it stays afloat on the water? That is the surface tension holding the layer up) Take a toothpick and put the end into soap so that it coats the end. Gently touch the surface of the water with the toothpick.
What is Cbse 9th surface tension?
Surface tension is the tendency of fluid surfaces to shrink into the minimum surface area possible. The surface tension can be determined by the difference of interactions between the molecules of the material (fluid) with the molecules of the material in contact.
How is surface tension related to surface?
Hence, surface tension = surface energy per unit area. Thus, surface tension is equal to the mechanical work done per unit surface area of the liquid, which is also called surface energy.
How is surface tension measured?
Surface tension is easily measured through the commonly used maximum bubble pressure method, a Wilhelmy balance, or a du Noüy ring tensiometer.
What is surface tension in simple words?
Surface tension is an effect where the surface of a liquid is strong. The surface can hold up a weight, and the surface of a water droplet holds the droplet together, in a ball shape. Surface tension has the dimension of force per unit length, or of energy per unit area.
What is surface tension for Class 11?
Surface tension is the property of any liquid by virtue of which tries to minimize its free surface area. Surface tension of a liquid is measured as the force acting per length on an imaginary line drawn tangentially on the free surface the liquid. Surface tension S = Force/Length = F/l = Work done/Change in area.
What is 10th surface tension?
Surface tension is the tendency of fluid surfaces to shrink into the minimum surface area possible.
What is the definition of surface tension?
According to the definition of surface tension, it is the phenomenon that occurs when the surface of a liquid is in contact with another phase (it can be a liquid as well). Liquids tend to acquire the least surface area possible. The surface of the liquid behaves like an elastic sheet. “Surface tension is the tension of the surface film
How do you calculate surface tension of a liquid?
Surface tension = (surface force)/ (length force acts) γ = F /d. Over here: Γ refers to the Surface tension. F is the force which applies to the liquid. d refers to the length where the force acts.
What is the cause of surface tension in a film?
The tension is due to unequal attraction of the film molecules as compared with the molecules in the interior of the liquid. Surface tension x Surface area = Surface energy.
Why does water have a higher surface tension than other liquids?
Because of the relatively high attraction of water molecules to each other through a web of hydrogen bonds, water has a higher surface tension (72.8 millinewtons (mN) per meter at 20 °C) than most other liquids. Surface tension is an important factor in the phenomenon of capillarity.