Among green light and red light, the colour having the higher energy photons should be identified. Concept introduction: Electromagnetic radiations are a type of energy surrounding us. They are of different types like radio waves, IR, UV, X-ray etc. The red light and green light lies in the visible light where it is between 400 nm and 700 nm . Planck’s equation, E = hν = hc λ where, E = energy h = Planck's constant ν = frequency The energy increases as the wavelength of the light decrease. Also the energy increases as the frequency of the light increases. The frequency of the light is inversely proportional to its wavelength. ν = c λ where, c = speed of light ν = frequency λ = wavelength

BuyFind

Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640
BuyFind

Chemistry & Chemical Reactivity

9th Edition
John C. Kotz + 3 others
Publisher: Cengage Learning
ISBN: 9781133949640

Solutions

Chapter 6, Problem 55GQ

(a)

Interpretation Introduction

Interpretation: Among green light and red light, the colour having the higher energy photons should be identified.

Concept introduction:

  • Electromagnetic radiations are a type of energy surrounding us. They are of different types like radio waves, IR, UV, X-ray etc.

Chemistry & Chemical Reactivity, Chapter 6, Problem 55GQ , additional homework tip  1

  • The red light and green light lies in the visible light where it is between 400nm and 700nm.
  • Planck’s equation,

  E==hcλwhere, E=energyh=Planck'sconstantν=frequency

The energy increases as the wavelength of the light decrease. Also the energy increases as the frequency of the light increases.

  • The frequency of the light is inversely proportional to its wavelength.

  ν=cλwhere, c=speedoflightν=frequencyλ=wavelength

(b)

Interpretation Introduction

Interpretation: Among green light and red light, the colour having 500nm and 680nm wavelength should be identified.

Concept introduction:

  • Electromagnetic radiations are a type of energy surrounding us. They are of different types like radio waves, IR, UV, X-ray etc.

Chemistry & Chemical Reactivity, Chapter 6, Problem 55GQ , additional homework tip  2

  • The red light and green light lies in the visible light where it is between 400nm and 700nm.

(c)

Interpretation Introduction

Interpretation: Among green light and red light, the colour having higher frequency should be identified.

Concept introduction:

  • Electromagnetic radiations are a type of energy surrounding us. They are of different types like radio waves, IR, UV, X-ray etc.

Chemistry & Chemical Reactivity, Chapter 6, Problem 55GQ , additional homework tip  3

  • The red light and green light lies in the visible light where it is between 400nm and 700nm.
  • The frequency of the light is inversely proportional to its wavelength.

  ν=cλwhere, c=speedoflightν=frequencyλ=wavelength

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