Chapter 7, Problem 7.79P

Interpretation Introduction

Interpretation:

The partial pressure of the nitrogen gas in air bubble breathed by a scuba diver at 66ft below the water surface needs to be determined. The pressure at this point is 3.00 atm and partial pressure of nitrogen gas in air is 593 mm Hg at 1 atm.

Concept introduction:

The fraction of nitrogen gas can be calculated from partial pressure of nitrogen gas and total pressure as follows:

  ${\text{fraction of N}}_{\text{2}}\text{=}\frac{{\text{partial pressure of N}}_{\text{2}}\text{gas}}{\text{total pressure}}$

Thus,

  ${\text{partial pressure of N}}_{\text{2}}{\text{gas=fraction of N}}_{\text{2}}\text{×total pressure}$