Chapter 8.11, Problem 8.21P

Interpretation Introduction

Interpretation:

The partial pressure of oxygen in the lungs at the given altitude should be identified if the atmospheric pressure is $\text{265}\text{mm}\text{Hg}$

Concept Introduction:

• Partial pressure: The pressure of each gas in a mixture of gases is the partial pressure.
• Dalton’s law of partial pressure: The total pressure of gases in a mixture of gases is the sum of the pressure of each gas in the mixture
• Mole fraction: Quantity which defines the number of moles of a substance in a mixture divided by the total number of moles of all substances present.

  ${\text{x}}_{\text{a}}\text{=}\frac{{\text{n}}_{\text{a}}}{{\text{n}}_{\text{total}}}$

  ${\text{p}}_{\text{a}}\text{=}{\text{x}}_{\text{a}}\text{×}{\text{P}}_{\text{total}}$

  Partial pressure of a gas in the mixture of gases is the product of mole fraction of the gas and the total pressure.