Physics · Mechanical Properties of Fluids
A dilute solution of oleic acid is prepared such that its concentration is 0.01 cm3 of oleic acid per cm3 of the solution. A thin monomolecular film of this solution of area 4 cm2 is formed by considering 100 spherical drops of radius (340π)1/3 × 10-3 cm. If the thickness of the oleic acid layer is x × 10-14 m, then the value of x is:
- 150
- 225✓
- 315
- 410
Correct answer
25
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