Chapter 5, Problem 5.145QP

(a)

Interpretation Introduction

Interpretation:

(i) The root-mean-square speeds and average kinetic energies of the Helium both compared.

(ii) The frequency and force has to be compared.

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

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

(b)

Interpretation Introduction

Interpretation:

(i) The frequency and force of helium has to be compared.

(ii) The frequency and force has to be compared.

(c) The given statement valid

Concept Introduction:

The main useful of the idea is in the study of the standard impact force during collisions.  Used for collisions, the mass and change in velocity are often willingly measured, other than the force during the collision is not.

(c)

Interpretation Introduction

Interpretation:

The given statement has to be valid.

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

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