Consider a 0.15-mm-diameter air bubble in a liquid. Determine the pressure difference between the inside and outside of the air bubble if the surface tension at the air-liquid interface is a. 0.1 N/m. b. 0.12 N/m.

a)

b)

Explanation:

Given that

Diameter ,d= 0.15 mm

We know that pressure difference is given as

Now by putting the values

When surface tension 0.1 N/m  :

The surface tension ,

When surface tension 0.12 N/m  :

The surface tension ,

a)

b)

answer:

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explanation:

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