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Determination of the surface tension of pure liquids by volume of bubbles. P3040101

You can get the concept of:
The boundary surface tension, boundary surface energy, hydrostatic pressure, intermolecular interactions.

Principle:
Bubble pressure method - is used to determine the surface tension. The pressure can push the bubble out of the capillary, which is vertically immersed in the liquid. Surface tension depends on the increase of pressure, the radius of the capillary tube and the depth of immersion.