Chapter 12, Problem 8PE

(a)

Interpretation Introduction

Interpretation:

Conversion of $\text{631 torr}$ pressure into $\text{atm}$ has to be determined.

Concept Introduction:

Barometer is used for measurement of pressure of gas in atmospheric units $\left(\text{atm}\right)$. Pressure can also be represented in many units such as $\text{torr,}$ $\text{mm Hg,}$ $\text{lb/in}{\text{.}}^2$, and Pascal $\left(\text{Pa}\right)$. These units can be related to one another as follows:

  $\begin{array}{c}1\text{ atm}=760\text{ torr}\\ =760\text{ mm Hg}\\ =\text{101325 Pa}\\ =\text{101}\text{.325 kPa}\\ =14.7\text{ lb/in}{\text{.}}^2\text{ or psi}\end{array}$

(b)

Interpretation Introduction

Interpretation:

Conversion of $\text{631 torr}$ pressure into $\text{psi}$ has to be determined.

Concept Introduction:

Refer to part (a).

(c)

Interpretation Introduction

Interpretation:

Conversion of $\text{631 torr}$ pressure into $\text{kPa}$ has to be determined.

Concept Introduction:

Refer to part (a).

(d)

Interpretation Introduction

Interpretation:

Whether pilot needs to put on oxygen mask or not has to be determined.