Chapter 8, Problem 55QRT

(a)

Interpretation Introduction

Interpretation:

Average molar mass of air has to be determined.

Concept Introduction:

Density (d) can be calculated by the equation given below:

  $\text{d}\text{=}\frac{\text{PM}}{\text{RT}}$

Where,

  P is the Pressure

  M is the Molar mass

    T is the Temperature

    R is the gas constant

(b)

Interpretation Introduction

Interpretation:

Mole fraction of $N_2$ and $O_2$ has to be determined.