GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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viscosity
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surface area
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surface tension
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pull attraction
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Detailed explanation-1: -Cohesion is the tendency for the same kind of particles to be attracted to one another. This cohesive “stickiness” accounts for the surface tension of a liquid.
Detailed explanation-2: -Surface tension is typically measured in dynes/cm, the force in dynes is required to break a film of length 1 cm.
Detailed explanation-3: -Surface tension could be defined as the property of the surface of a liquid that allows it to resist an external force, due to the cohesive nature of the water molecules.
Detailed explanation-4: -Because of the relatively high attraction of water molecules to each other through a web of hydrogen bonds, water has a higher surface tension (72.8 millinewtons (mN) per meter at 20 °C) than most other liquids. Surface tension is an important factor in the phenomenon of capillarity.