Two water droplets combine to form a large drop. In this process, the energy is ____.

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Detailed Solution

Concept- The energy would be liberated in this process. When two water droplets unite to produce a huge and a single drop, the net surface area falls because the total of the areas of two drops is unquestionably greater than the sum of the areas of a single drop. As a result, its surface tension lowers.
Consider two drops with radius r.
If R is the radius of the large drop.
Because the volume remains constant during the procedure, we can claim,

Hence,

Before combination the area is considered as $4 pi r^{2} n$
After combination it is $4 pi R^{2}$
We know that surface energy is the product of surface tension and area.
The change in surface energy can be calculated as

is a negative value. All the other quantities are positive.
As a result, the value of surface energy has decreased.
As a result, we can say that the system has released its excess energy and is now in a more stable condition.
The final effect of merging two or more drops to produce a single droplet of liquid is the liberation of energy.
Hence, the answer is liberated.

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