Question
Download Solution PDFSurface tension can also be expressed as ______.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Surface tension
- It is the property of liquid by virtue of which the free surface of the liquid at rest acting like a stretched membrane trying to contract to reduce its surface area.
- Surface tension is a force per unit length (or surface energy per unit area) acting in the plane of interface between the liquid and the bounding surface.
- Surface tension is measured in SI units of N/m (newton per meter).
- It is the extra energy that the molecules at the interface have as compared to the interior.
The surface tension is the force acting perpendicular on a unit length of an imaginary line drawn on the surface of the liquid and it can be expressed as
\(T = \frac{F}{l}\)
Where
T = surface tension,
F = force acting on the surface (Cohesive force)
l = unit length
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