Chapter 14, Problem 14B.3E

(a)

Interpretation Introduction

Interpretation:

The difference in pressure on either side of a curved surface of water with given radius has to be calculated.

Concept Introduction:

The pressure on either side of a spherical surface of radius r is given by the Laplace

equation:

    $\begin{array}{l}{\text{P}}_{\text{concave}}\text{=}{\text{p}}_{\text{convex}}\text{+}\frac{\text{2γ}}{\text{r}}\\ \\ \text{γ}\text{is}\text{the surface tension}\\ \\ \text{radius r}\text{of}\text{spherical surface}\end{array}$

The pressure on the concave side of an interface is always greater than the pressure

on the convex side.

(b)

Interpretation Introduction

Interpretation:

The difference in pressure on either side of a curved surface of water with given radius  has to be calculated.

Concept Introduction:

The pressure on either side of a spherical surface of radius r is given by the Laplace

equation:

    $\begin{array}{l}{\text{P}}_{\text{concave}}\text{=}{\text{p}}_{\text{convex}}\text{+}\frac{\text{2γ}}{\text{r}}\\ \\ \text{γ}\text{is}\text{the surface tension}\\ \\ \text{radius r}\text{of}\text{spherical surface}\end{array}$

The pressure on the concave side of an interface is always greater than the pressure

on the convex side.