Surface tension disinfectants: Disinfectants are usually solutions of low surface tension. Liquids that have strong intermolecular forces, like the hydrogen bonding in water, exhibit the greatest surface tension. Learn a new word every day. Examples of Surface Tension . In other words, it is also the property of the liquid surface that resists force. It is the tendency of a fluid surface to occupy the smallest possible surface area. This phenomenon can be observed in the nearly spherical shape of small drops of liquids and of soap bubbles. A molecule lying inside the liquid is surrounded by other molecules and so is attracted equally in all directions. The force of attraction between like molecules in a liquid lends it a tendency to contract at the surface. If the surface is between two liquids (such as water and oil), it is called "interface tension." Surface tension, property of a liquid surface displayed by its acting as if it were a stretched elastic membrane. Soaps and detergents: These help the cleaning of clothes by lowering the surface tension … Surface tension is the energy required to increase the surface area of a liquid by a unit amount and varies greatly from liquid to liquid based on the nature of the intermolecular forces, e.g., water with hydrogen bonds has a surface tension of 7.29 x 10-2 J/m 2 (at 20°C), while mercury with metallic bonds has as surface tension … Surface tension … The surface tension of a liquid is a measure of the elastic force in the liquid’s surface. To learn more about topics of viscosity like Coefficient of Viscosity, register with BYJU’S and download BYJU’S –the learning app. Surface tension is a principal factor in capillary action. (B) Surface tension allows a paper clip to float on water’s surface. 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. What is on these insects legs that helps them walk on water? It is the reason why the surfac… The intermolecular forces for the ether are the relatively weak dipole-dipole interactions that do not draw the molecules together as tightly as hydrogen bonds would. For example, if we add soap to the water, it is surface tension decreases, thereby the liquid with soap easily mixes with dirt on hand and thus cleans it. Send us feedback. Describe role of intermolecular forces in affecting surface tension. Delivered to your inbox! water vs. gasoline) or solutes in the liquid (e.g. Whereas surface tension is determined by the difference of interactions between the molecules of the material (fluid) with the molecules of the material in contact. The above phenomenon of viscosity is very much particular to liquid, to be precise Newtonian fluids. Surface tension is the amount of energy required to increase the surface of the liquid by unit area. Liquids tend to acquire the least surface area possible. What made you want to look up surface tension? Can you spell these 10 commonly misspelled words? It is the tendency of a fluid surface to occupy the smallest possible surface area. 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