Chapter 10.1, Problem 2CP

Interpretation Introduction

Interpretation:

The true relationship between the units of pressure is to be identified.

Concept Introduction:

Pressure is the force per unit area. The units used for pressure are Pascal, atm, torr, bar, and mmHg.

The conversion for pressure is given below:

In one mmHg, there are $133.322\text{ Pa}$.

In one torr, there are $133.322\text{ Pa}$. In one torr, there are $\text{1}\text{.316}\times {\text{10}}^{-3}\text{ atm}$.

To convert mmHg to $\text{ Pa}$, the conversion factor is $\frac{133.322\text{ Pa}}{1\text{ mmHg}}$.

To convert $\text{atm}$ to $\text{torr}$, the conversion factor is $\frac{1\text{ torr}}{\text{1}\text{.316}\times {\text{10}}^{-3}\text{ atm}}$.

The relationship between $\text{atm}$ and $\text{ Pa}$ can be expressed as $1\text{ atm}=101,325\text{ Pa}$

To convert $\text{ Pa}$ to $\text{atm}$, the conversion factor is $\frac{1\text{atm}}{101,325\text{Pa}}$.