Chapter 5, Problem 5.6P

Interpretation Introduction

Interpretation:

The barometric pressure in centimetres of water is to be calculated.

Concept introduction:

The height of the mercury is the inversely proportional to the density.

The relation between the height of the mercury and water to the density of water and mercury is as follows:

$\frac{h_{{\text{H}}_{\text{2}}\text{O}}}{h_{\text{Hg}}}=\frac{d_{{\text{H}}_{\text{2}}\text{O}}}{d_{\text{Hg}}}$        (1)

Here, $h_{\text{Hg}}$ is the height of the mercury, $h_{{\text{H}}_{\text{2}}\text{O}}$ is the height of the water, $d_{\text{Hg}}$ is the density of the mercury and $d_{{\text{H}}_{\text{2}}\text{O}}$ is the density of water.