Chapter 6, Problem 6.5QE

Interpretation Introduction

Interpretation:

Three units used to express pressure have to be defined.

Concept Introduction:

The gaseous molecules exert pressure in all directions. The pressure can be defined as amount of force exerted perpendicular to the surface per unit area. Mathematically the relation can be described as follows:

  $\text{Pressure}\left(\text{N}/{\text{m}}^2\right)=\frac{\text{Force}\left(\text{N}\right)}{\text{Area}\left({\text{m}}^2\right)}$