Chapter 7, Problem 63QRT

(a)

Interpretation Introduction

Interpretation:

The energy of radiation in both IR and UV spectroscopy has to be compared.

Concept Introduction:

IR spectral studies: It is a spectroscopic technique which is used to determine the functional groups present in the given compound sample by absorbing characteristic frequency in particular range with respect to the group present in the given sample.

Absorption spectrum:  This is measurement of the amount of (UV-VIS) light absorbed by a liquid sample of a given path length. Absorbance is directly proportional to the concentration of matter in the sample.

The energy E of electromagnetic radiation is directly proportional to the frequency $\nu$ of the radiation.

Therefore,

$\begin{array}{l}E=h\nu \\ E=\frac{hc}{\lambda }\end{array}$.

Where, E is the energy, h is the Plank’s constant $\left(6.626\times {10}^{-34}Js\right)$, $\nu$ is the frequency of radiation, c is the velocity of light and $\lambda$ is the wavelength of the radiation.

(b)

Interpretation Introduction

Interpretation:

The wavelength of radiation in both IR and UV spectroscopy has to be compared.

Concept Introduction:

Refer to a.

(c)

Interpretation Introduction

Interpretation:

The frequency of radiation in both IR and UV spectroscopy has to be compared.

Concept Introduction:

Refer to (a).