Chapter 11.2, Problem 1PPA

Interpretation Introduction

Interpretation:

The relative root-mean-square speeds of ${\text{O}}_{\text{2}}{\text{ and SF}}_{\text{6}}$ has to be determined.

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

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

The speed at which the target is moving equals:

Speed of target = circumference × revolutions/second