Chapter 5, Problem 5.76QP

Interpretation Introduction

Interpretation:

The root-mean-square speed and the average speed of the molecules have to be calculated.  The reason for these two average values are close to each other, but the root-mean-square value is always the larger of the two has to be explained.

Concept Introduction:

Root mean-square speed is the parameter to measure the speed of particles in a gas. M is the molecular mass of the molecule at temperature T, root mean-square speed (${\text{u}}_{\text{rms}}$) has to be calculate using the formula

${\text{u}}_{\text{rms}}\text{=}\sqrt{\frac{\text{3RT}}{\text{M}}}$