Question

when purged in water which of the following will have the largest surface area of per unit volume or air
1. Bubbles having a diameter of 1 millimeter
2. Bubbles having a diameter of 2 millimeter
3. Bubbles having a diameter of 3 millimeter
4. Bubbles having a diameter of 4 millimeter

Answer 1

Answer:

Bubbles having a diameter of 4 milimeter because when area is big pressure small.

Answer 2

Answer:1 millimetre

Explanation:

For a sphere, surface area is S= 4*Pi*R*R, where R is the radius & The volume of a sphere is V= 4*Pi*R*R*R/3. So surface area per unit volume of air is given by: S/V = 3/R....Hence we can see the relationship between surface area per unit volume is inverse with radius.