A mercury drop of radius `R` is sprayed into `n` droplets of equal size. Calculate the energy expanded if surface tension of mercury is `T`.

Explanation

To solve the problem of calculating the energy expanded when a mercury drop of radius \( R \) is sprayed into \( n \) droplets of equal size, we can follow these steps:

### Step 1: Understand the Volume Conservation
The volume of the original mercury drop must equal the total volume of the \( n \) smaller droplets.

- The volume \( V \) of a sphere is given by the formula:
\[
V = \frac{4}{3} \pi R^3
...