Chapter 10, Problem 8QP

Interpretation Introduction

Interpretation:

The atmospheric pressure in a mine, which is situated 500 m below the sea level is greater or less than 1 atm is to be determined.

Concept introduction:

In the physical sense, pressure is the force applied per unit area and its common unit is ${\text{N/m}}^{\text{2}}$, which is equivalent to Pascal (Pa).

The expression for pressure is as follows:

$\text{Pressure = }\frac{\text{Force}}{\text{Area}}$

As we go above the sea level, the density of the atmosphere decreases resulting in the low atmospheric pressure at higher altitudes.

As we go below the sea level, the density of the atmosphere increases resulting in high atmospheric pressure below the sea levels.