Chapter 5, Problem 87E

Interpretation Introduction

Interpretation: The partial pressure of each gas in the given figure is needed to be determined where the numbers of each type of gas are $\text{5}\text{He}$_, $\text{3Ne}$ and $\text{2Ar}$.

Concept introduction:

Partial pressure of a gas in a mixture of gases is the pressure of that gas when it alone.

Partial pressure of a gas in terms of its mole fraction and total pressure is,

` ${\text{P}}_{\text{A}}\text{=}{\text{χ}}_{\text{A}}\text{×}{\text{P}}_{\text{TOTAL}}$

A mole fraction of a molecule in a mixture is the ratio of number of moles of these molecules to sum of number of moles of all molecules in the mixture. The mole fractions can be related to molecule fractions.

Equation for molecule fraction of molecule is,

$\text{molecule}\text{fraction}\text{of}\text{a}\text{molecule}\text{=}\frac{\text{numbers}\text{of}\text{a}\text{molecule}}{\text{total}\text{number}\text{of}\text{molecules}}$