Surface tenson

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By definition, surface tesnsion is the force at the surface of seperation of two fluids and it's unit is N/m. my doubts are
1. Is it the force per unit length?
2. Does Surface tenson changes with change in lenth of the liquid container?
 

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  • #2
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Yes. No. Surface energy changes with surface area; surface tension times the area of the surface bounding a phase = surface energy --- this is what drives the formation of spherical bubbles, droplets, etc.
 

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