Mechanical Properties of Fluids

Given, n identical drops (each of radius r) of liquid of surface tension T and density ρ coalesce to form single drop. The energy released in the processes is converted into heat. Find the increase in the temperature of drop.

When n drops coalesce to form a single drop, the energy released during the process is

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Explain that spraying results coldness.

n identical drops (each of radius r) of liquid of surface tension T and density ρ coalesce to form single drop. The energy released in the process is converted into kinetic energy. Find the speed of drop.

How does the surface tension of water change with impurities?

It is possible to produce a fairly vertical film of soap solution but not of pure water. Explain.

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