Calculate the amount of energy evolved when eight drplets of mercury (surface tension `0.55Nm^(-1)`) of radius 1 mm each combine into one.

Calculate the energy evolved when 8 droplets of water (surface tension 0.072 Nm^(-1) ) of radius 1.2 mm each combine into one.

Calculate the amount of energy evolved when 8 droplets of water ("surface tension" =7 2 "dyne"" "cm^(-1)) of radius 0.5 mm each combine into one.

The work done in blowing a soap bubble of surface tension 0.60 Nm^(-1) from 2 cm radius to 5 cm radius is

Find the work done in blowing a soap bubble of surface tension 0.06 Nm^(-1) from 2 cm radius to 5 cm radius.

Calculate the work done when a spherical drop of mercury of radius 1 mm falls from some height and breaks into 27droplets.each of the the same size. The surface tension of mermcury is T= 0.47 N/m.

The surface energy of liquid film on a ring of area 0.15 m^(2) is (surface tension of liquid 5Nm^(-1) )

What amount of energy will be liberated if 1000 droplets of water, each of diameter 10^(-8)cm, coalesce to form a bigger drop. Surface tension of water is 0.072"Nm"^(-1).