If a large number of water droplets coalesce to form a single large drop, then state whether the total surface energy increases or decreases. Explain.

If a large number of water droplets coalesce to form a single large dr

1.	If a large number of water droplets coalesce to form a single large drop, then state whether the total surface energy increases or decreases. Explain.
Answer» Solution :In this case, the surface energy decreases. The total surface area of the SMALL DROPLETS is greater than the surface area of the large drop FORMED. So, when a large number of water droplets coalesce to FORM a single large drop, the surface area decreases. Hence, it indicates a decreases in surface energy, because decreases in surface energy = decreases in surface area `XX` surface tension.