1.

A spherical drop of water has 1mm radius. If the surface tension of the water is 50 x 10 N/m, then find thedifference of pressure between inside and outside the spherical drop is

Answer»

We know that -PTwo identical soap bubbles each of radius r and of the same surface tension t combine to form a new soap bubble of radius r.

The two bubbles contain air temperature. if the atmospheric pressure is pnot then find the surface tension t of the soap sol in terms of po,r,r.

Assume process is isothermal=2T/r2*50*10^-3/1*10^-3= 100N/m²



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