9 thoughts on “ Surface Tension ”

  1. Mathematically, surface tension is the force exhibited by the intermolecular forces divided by the length of the contact line between the phases. Therefore, the unit of surface tension is N/m. The forces are generally so small that the unit of mN/m has established itself as the standard unit being used. Water, for example, has a relatively high.
  2. May 30,  · 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.
  3. Surface tension is the elastic tendency of a fluid surface which makes it acquire the least possible surface area possible. At liquid–air interfaces, surface tension results from the greater attraction of liquid molecules to each other (due to cohesion) than to the molecules in the air (due to adhesion).
  4. Surface tension is an effect of intermolecular attraction, in which molecules at or near the surface undergo a net attraction to the rest of the fluid, while molecules not near the surface are attracted to other molecules equally in all directions and undergo no net attraction.
  5. Surface tension is an important property of the surface of a liquid. It is what causes the surface of a portion of liquid to be attracted by another surface, such as that of another portion of liquid. Usually, the higher the surface tension is, the stronger the interactions between the molecules of the liquid are.
  6. Surface tension is a phenomenon which mainly depends on the attraction forces between liquid particles that are present in the liquid and the solid, liquid or gas whichever is in contact with the liquid. The molecules that are present in a water droplet does attract themselves but with only a little bit of force.
  7. Surface tension is expressed in units of force per unit length or of energy per unit area (for instance, N/m or J/m 2). The two are equivalent, but when referring to energy per unit area, people use the term “surface energy,” which is a more general term in the sense that it applies to solids as well as to liquids.
  8. 93 rows · Surface tension is the energy required to stretch a unit change of surface area - and the .
  9. Equilibrium surface tension can be measured with force or optical tensiometers. Force tensiometry. The measurement of surface and interfacial tension as performed by a Sigma force tensiometer is based on force measurements of the interaction of a probe with the surface of interface of two fluids.

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