Chapter 5, Problem 5.116QP

(a)

Interpretation Introduction

Interpretation:

The speed of the target is moving, the time it takes for the target to travel and the speed of the Bi atoms has to be calculated.

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

(b)

Interpretation Introduction

Interpretation:

The time it takes for the target to travel has to be determined.

(c)

Interpretation Introduction

Interpretation:

The Bi atoms travel this distance has to be calculated.