surface tension of liquids
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Posted by Sahil Malik 5 years, 1 month ago
- 2 answers
Gaurav Seth 5 years, 1 month ago
Surface tension is the property of any liquid by virtue of which tries to minimize its free surface area.
Surface tension of a liquid is measured as the force acting per length on an imaginary line drawn tangentially on the free surface the liquid.
Surface tension S = Force/Length = F/l = Work done/Change in area
Its SI unit is Nm-1 or Jm-2 and its dimensional formula is [MT-2].
It is a scalar quantity. Surface tension is a molecular phenomenon which is due to cohesive force and root cause of the force is electrical in nature.
Surface tension of a liquid depends only on the nature of liquid and independent of the surface area of film or length of the line .
Small liquid drops are spherical due to the property of surface tension.
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Prateek .. 5 years, 1 month ago
0Thank You