Chapter 10, Problem 7QP

Interpretation Introduction

Interpretation:

The reason for the easiness in drinking water with straw on Mt. Everest or at its foot is to be explained

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 formula for pressure is given as

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

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

On higher altitudes, the pressure of the atmosphere decreases.

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