Chapter 14, Problem 14.19E

Interpretation Introduction

Interpretation:

The moment of inertia for acetylene, $\text{HC}\equiv \text{CH}$ molecule is to be calculated.

Concept introduction:

Rigid rotor is a mechanical model of a $3$-dimensional rigid object. To locate such an object in space, it requires three coordinates. In a rotation system, the energy is measured by the equation, $E_{\text{J}}=BJ\left(J+1\right)$. $B$ is known as rotational constant, which is related to the reduced mass and bond length.