Surface tension is the energy required to increase the surface area of a liquid by a unit amount

Surface tension is the energy required to increase the surface area of a liquid by a unit amount

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Surface tension is the energy required to increase the surface area of a liquid by a unit amount Water Intermolecular hydrogen bonds Surface tension at 20°C is 7.29 x 10 -2 J/m 2 Mercury Intermolecular metallic (electrostatic) bonds Surface tension at 20°C is 4.6 x 10 -1 J/m 2 Cohesive forces bind molecules of the same type together Adhesive forces bind a substance to a surface For example, attractive forces (hydrogen bonding) exists between glass materials
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Unformatted text preview: (Silicon dioxide) and water. This is the basis of "capillary" action, where water can move up a thin capillary, against the force of gravity. Surface tension "pulls" neighboring water molecules along. The liquid climbs until the adhesive and cohesive forces are balance by the force of gravity...
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