Chapter 13, Problem 13E.2BE

Interpretation Introduction

Interpretation:

The values of $\gamma =C_{p,m}/C_{V,m}$ for carbon dioxide are to be calculated with and without the vibrational contribution to the energy.  Also, the value which is found to be closer to the experimental value at $2\text{5}{}^{\text{ο}}\text{C}$ is to be identified.

Concept introduction:

According to the equipartition theorem, the contribution of each degree of freedom to the heat capacity is $\frac{1}{2}R$.  The molar heat capacity at constant volume is calculated by using the formula shown below.

    $C_{V,m}=\text{translational}+\text{rotational}+\text{vibrational}$