Find the lifetime of a soap bubble of radius `R` connected with the atmosphere through a capillary of length `l` and inside radius `r`. The surface tension is `alpha`, the viscosity coefficient of the gas is `eta`.

The time of survival of a soap bubble of radius of R connected with atmosphere through a capillary of length 1 and radius r. The surface tension is T and the coefficient of viscosity of air is eta . In terms of (etalR^(4))/(Tr^(4)) is

At one end of capillary tube of radius r and length l, there is a soap bubble of radius R. The bubble is connected to the atmosphere though ccapillary tube. After how long the radius of the bubble will be reduced to zero? Coefficient of viscosity of air in eta .

The excess pressure inside a soap bubble of radius R is (S is the surface tension)

Excess pressure inside a soap bubble of radius r and surface tension T is

What is the surface energy of an air bubble of radius r inside a soap solution with surface tension T ?

What is the surface energy of an air bubble of radius r inside a soap solution with surface tension T ?

If the surface tension (T) of a soap bubble depends upon excess of pressure radius 'r' of the bubble, then obtain an equation for the surface tension.