Chapter 21, Problem 21.67QP

Interpretation Introduction

Interpretation:  The number of photons absorbed at the given wave length of radiation by carbon dioxide should be determined.

Concept Introduction:

• Photons: These are the particles which transmit light and light is carried over space by them.
• Energy of photon E $\text{=}\text{hν}\text{=}\frac{\text{hc}}{\text{λ}}$

                            h is the Plank’s constant its value is $\text{6}\text{.63 ×}{\text{10}}^{\text{-34}}\text{J}\text{.s}$

$\text{ν}$ is the frequency of radiation.

                            C is the velocity of light it equal to $\text{3×}{\text{10}}^{\text{8}}{\text{ms}}^{\text{-1}}$

                            $\text{λ}$ is wavelength of radiation.

• The number of photons absorbed by the substance per second,

$\text{=}\text{Given}\text{energy}\text{of}\text{photons}\text{×}\frac{\text{1}\text{photon}}{\text{calculated}\text{energy}\text{of}\text{one}\text{photons}}$

To find: the energy of one photon.