Chapter 19, Problem 19.41E

Interpretation Introduction

Interpretation:

The mean free path of a nitrogen molecule, $d=3.20\stackrel{\circ }{\text{A}}$, under given conditions is to be calculated.

Concept introduction:

The mean free path is calculated by the formula,

$\lambda =\frac{kT}{\sqrt{2}\pi d^{2}p}$

Where,

• $k$ is the Boltzmann constant.

• $T$ is the temperature.

• $d$ is the interstellar space.

• $p$ is the pressure.