Chapter 22, Problem 22.6E

Interpretation Introduction

Interpretation:

The surface work required to decrease the surface of glycerine from $67.7{\text{cm}}^{\text{2}}$ to $23.9{\text{cm}}^{\text{2}}$ is to be calculated.

Concept Introduction:

The atoms or molecules at the surface of the liquid are considered as a film. The atoms or molecules in bulk imply a force on the atoms or molecules at the surface of the liquid and tends to minimize the surface area of the liquid. This phenomenon is known as the surface tension of the liquid.