Chapter 4, Problem 16Q

(a)

Interpretation Introduction

Interpretation:

The energy corresponding to the IR photons in the given process has to be determined.

Concept introduction:

Electromagnetic spectrum shows the range of all types of electromagnetic radiation.

Radiant energy emitted by all matter whose temperature is greater than absolute zero

($0^o\text{}K$).

Radiant energy with short wavelength (higher frequency) will have the most energy and as the wavelength get longer, the energy decreases.

The energy of a photon can be calculated using the equation,

$\begin{array}{c}\text{E}\text{=}\text{hν}\\ \text{=}\text{h}\frac{\text{c}}{\text{λ}}\\ \text{h}=\text{6}\text{.62}\text{kt}{\text{10}}^{\text{-34}}\text{J}\text{.s}\\ \text{ν}=\text{frequency}\\ \text{c}=\text{velocity}\text{of}\text{light}\\ \text{λ}=\text{wavelength}\end{array}$

(b)

Interpretation Introduction

Interpretation:

The correct answer has to be given for the question, what will happens to the energy in the vibrating $C{O}_2$ species.

Concept introduction:

The energy of a photon can be calculated using the equation,

$\begin{array}{c}\text{E}\text{=}\text{hν}\\ \text{=}\text{h}\frac{\text{c}}{\text{λ}}\\ \text{h}=\text{6}\text{.62}\text{kt}{\text{10}}^{\text{-34}}\text{J}\text{.s}\\ \text{ν}=\text{frequency}\\ \text{c}=\text{velocity}\text{of}\text{light}\\ \text{λ}=\text{wavelength}\end{array}$

The energy of a molecule can transferred to any other objects or material through various ways, and these can also spontaneously emitted back to the atmosphere or into space.