Chapter 10, Problem 85RQ

Interpretation Introduction

Interpretation:

The mole fraction and the mole percent of oxygen in exhaled air are to be determined.

Concept Introduction:

The mole fraction of a gas can be defined as the ratio of partial pressure of the gas to the total pressure. It is given by the equation as:

$X_{\text{A}}=\frac{P_{\text{A}}}{P_{\text{total}}}$

Here, $P_A$ is the partial pressure of gas $\text{A}$, $X_{\text{A}}$ is the mole fraction of gas $\text{A}$, and $P_{\text{total}}$ is the total pressure.