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Chapter 4: Problem 17

For any liquid, the number of drops formed per unit volume depends on (a) viscosity (b) surface tension (c) pressure (d) none

Short Answer

Expert verified
The factors that affect the formation of drops in any liquid per unit volume are viscosity and surface tension.

Step by step solution

01

Analyzing Effect of Viscosity

Viscosity refers to a fluid's resistance to shear or flow deformation. A liquid with high viscosity will experience a stronger internal friction. This would make it more difficult for the liquid to divide into separate drops. So, the viscosity does affect the number of drops formed.
02

Analyzing Effect of Surface Tension

Surface tension can be thought of as the tendency of the surface of a liquid to contract into the smallest possible surface area. The greater the surface tension of a liquid, the more it is resistant to the creation of new surface area, i.e., making new drops. Thus, surface tension influences the number of drops formed.
03

Analyzing Effect of Pressure

Pressure does impact the properties of a liquid but does not directly influence the number of drops formed per unit volume. So, this option is incorrect.
04

Conclusion

After examining each factor, it is clear that viscosity and surface tension influence the number of drops formed per unit volume in any liquid, while pressure does not have a direct impact.

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