Chapter 18, Problem 18.2P

(a)

Interpretation Introduction

Interpretation:

The amount of energy carried by one mole of photons of red light has to be calculated.

Concept introduction:

Plank-Einstein relation:

The relationship between $\text{E}\text{,}\text{h}\text{and}\text{ν}$ is given by Plank-Einstein equation

$\begin{array}{l}\text{E}\text{=}\text{hν}\text{=}\frac{\text{hC}}{\text{λ}}\\ \text{where,}\\ \text{E}\text{-}\text{energy}\\ \text{h}\text{-}\text{plank}\text{constant}\\ \text{ν}\text{-}\text{frequency}\\ \text{C}\text{-}\text{speed}\text{of}\text{light}\text{and}\text{λ}\text{-}\text{wavelength}\text{.}\end{array}$

(b)

Interpretation Introduction

Interpretation:

The amount of energy carried by one mole of photons of violet light has to be calculated.

Concept introduction:

Plank-Einstein relation:

The relationship between $\text{E}\text{,}\text{h}\text{and}\text{ν}$ is given by Plank-Einstein equation

$\begin{array}{l}\text{E}\text{=}\text{hν}\text{=}\frac{\text{hC}}{\text{λ}}\\ \text{where,}\\ \text{E}\text{-}\text{energy}\\ \text{h}\text{-}\text{plank}\text{constant}\\ \text{ν}\text{-}\text{frequency}\\ \text{C}\text{-}\text{speed}\text{of}\text{light}\text{and}\text{λ}\text{-}\text{wavelength}\text{.}\end{array}$