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Answer» Surface tension is the elastic tendency of a fluid surface which makes it acquire the least surface area possible. Factors affecting : # Viscosity # The surface tension of a liquid decreases with increase in temperature. # when charge is given to a soap bubble, its size increases surface tension of liquid decreases due to electrification. # surface tension decreases when partially soluble impurities either on the surface or dissolved in it. Such as:- soap, detergent, phenol etc. are added in water. # surface tension increases when highly soluble impurities such as salt is added in water. # At boiling point surface tension of liquid becomes zero at freezing point it becomes maximum. |
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