Chapter 18, Problem 18.30E

Interpretation Introduction

Interpretation:

The expected ratio of rotational partition functions for ${\text{H}}_2$ and ${\text{D}}_2$ is to be calculated. The expected ratio of rotational partition function is to be compared with the answer from exercise 18.18.

Concept introduction:

The rotational partition function of the diatomic molecule at high temperature is represented as,

$q_{\text{rot}}=\frac{T}{{\theta }_{\text{r}}}$

Where,

• ${\theta }_{\text{r}}$ represents the rotational temperature.

• $T$ represents the temperature.