Chapter 6, Problem 6.112QP

Interpretation Introduction

Interpretation: The mole fraction of ${\text{O}}_{\text{2}}$ in the gas mixture which the diver breathes to produce the same partial pressure of oxygen as the gas mixture at sea level is to be calculated.

Concept introduction: Mole fraction is the fraction between the number of moles present in a given substance by the total number of moles present in any given mixture.

To calculate: The mole fraction of ${\text{O}}_{\text{2}}$ in the gas mixture which the diver breathes to produce the same partial pressure of oxygen as the gas mixture at sea level.