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What is the origin of surface tension?
The surface tension of a liquid results from an imbalance of intermolecular attractive forces, the cohesive forces between molecules: A molecule in the bulk liquid experiences cohesive forces with other molecules in all directions. A molecule at the surface of a liquid experiences only net inward cohesive forces.
Who introduced surface tension?
Van der Waals
Van der Waals (1894) suggested a theory of surface tension that showed the relation of thermodynamic properties to the coexisting phase surface of fluids and found that the surface tension σ / pc2/3Tc1/3 can be correlated with 1-Tr in the critical region.
What is responsible for creating surface tension?
The cohesive forces between liquid molecules are responsible for the phenomenon known as surface tension.
Is surface tension a theory?
Surface tension has been well- explained by the molecular theory of matter. According to this theory, cohesive forces among liquid molecules are responsible for the phenomenon of surface tension. The molecules well inside the liquid are attracted equally in all directions by the other molecules.
Which of the following contributes to the reason behind the origin of surface tension?
1. Which of the following contribute to the reason behind the origin of surface tension? Explanation: The molecules on the surface of a liquid experience cohesive forces due to surrounding liquid molecules acting downward and adhesive forces due to surrounding gaseous molecules acting upwards.
What is the origin of surface?
surface (n.) 1610s, from French surface “an outermost boundary, outside part” (16c.), from Old French sur- “above” (see sur-) + face (see face (n.)). Patterned on Latin superficies “surface, upper side, top” (see superficial). As an adjective from 1660s. surface (v.) “come to the surface,” 1898, from surface (n.).
Is surface tension chemistry or physics?
Surface tension is a physical property equal to the amount of force per unit area necessary to expand the surface of a liquid. It is the tendency of a fluid surface to occupy the smallest possible surface area. Surface tension is a principal factor in capillary action.
Which of the following contribute to the reason behind the origin of surface tension?
Which of the following contribute to the reason behind the origin of surface tension? Solution: Explanation: The molecules on the surface of a liquid experience cohesive forces due to surrounding liquid molecules acting downward and adhesive forces due to surrounding gaseous molecules acting upwards.
What does surface tension depend on?
Surface tension depends mainly upon the forces of attraction between the particles within the given liquid and also upon the gas, solid, or liquid in contact with it. An increase in temperature lowers the net force of attraction among molecules and hence decreases surface tension.
What is surface tension for kids?
Surface tension is a force which causes a layer of liquid to behave like an elastic sheet or skin. It is the high surface tension of water which allows insects to walk over it. It is this skin ( surface tension ) that stops items on the surface sinking.
Which forces contribute origin of surface tension?
What are applications of surface tension?
Industrial applications: Surface tension is an important factor in industrial processes. In all the industrial plants the R&D departments use the surface tension phenomena to improve the quality of the products. Many operations are used to improve the quality of the product such as detergent formulations.
What are some real-life examples of surface tension?
A Drop of Liquid. Whether walking through the rain,spilling the morning coffee,or putting an eye drop,we come across several liquids splashing off the solid surfaces.
Who discovered centripetal force?
Isaac Newton coined the term ” centripetal force ” ( vis centripita) in his discussions of gravity in his 1684 De Motu Corporum. Gottfried Leibniz as part of his ” solar vortex theory ” conceived of centrifugal force as a real outward force which is induced by the circulation of the body upon which the force acts.
Why is surface tension important?
A Final Word. Surface tension is one of those details of the scientific world that may be hard to conceptualize or value in your daily life, but it actually underpins all of life as we know it. Surface tension allows ecosystems to thrive, it allows seeds and molecules to float, and drives much of life, albeit in a way most people overlook.
What are the properties of surface tension?
Surface tension is a property of a liquid surface that causes it to act like a stretched elastic membrane. Its strength depends on the forces of attraction among the particles of the liquid itself and with the particles of the gas, solid or liquid with which it comes in contact.