Question

Question - 5/40 Which of the following statements regarding vibrations of atoms/molecules is true? Options A O The energy levels corresponding to the vibrations are semi-discrete B O The energy levels corresponding to the vibrations are continuous с O The energy levels corresponding to the vibrations are discrete DO The energy levels corresponding to the vibrations are sem
i-continuous​

Answer 1

Explanation:

IR spectroscopy which has become so useful in identification, estimation, and structure determination of compounds draws its strength from being able to identify the various vibrational modes of a molecule. A complete description of these vibrational normal modes, their properties and their relationship with the molecular structure is the subject of this article.

Introduction

We are familiar with resolving a translational vector into its three components along the x-, y-, and z- axes. Similarly a rotational motion can also be resolved into its components. Likewise the same is true for vibrational motion. The complex vibration that a molecule is making is really a superposition of a number of much simpler basic vibrations called “normal modes”. Before we take up any further description of “normal modes” it is necessary to discuss the degrees of freedom.