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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

Consider the colors of the visible spectrum.

  1. (a) Which colors of light involve less energy than green light?
  2. (b) Which color of light has photons of greater energy, yellow or blue?
  3. (c) Which color of light has the higher frequency, blue or green?

(a)

Interpretation Introduction

Interpretation: The colors of light that has less energy than green light have to be determined.

Concept introduction:

  • Electromagnetic radiations are a type of energy surrounding us. They are of different types like radio waves, IR, UV, X-ray etc.
  • Visible light lies between the wavelength region 400nm to 700nm
  1. 1. The green light lies in the visible light where it is between 520nm and 560nm.
  2. 2. The yellow light lies in the visible light where it is between 590nm and 560nm.
  3. 3. The red light lies in the visible light where it is between 700nm and 635nm
Explanation

The green light lies in the visible light where its wavelength is between 492nm and 577nm.

E=hcλ so the energy increases as the wavelength of the light decrease

(b)

Interpretation Introduction

Interpretation: The color of light with photons of great energy has to be determined among yellow and blue light.

Concept introduction:

  • Electromagnetic radiations are a type of energy surrounding us. They are of different types like radio waves, IR, UV, X-ray etc.
  • Visible light lies between the wavelength region 400nm to 700nm
  1. 1. The yellow light lies in the visible light where it is between 590nm and 560nm.
  2. 2. The blue light lies in the visible light where it is between 490nm and 450nm

(c)

Interpretation Introduction

Interpretation: The color of light that has higher frequency has to be determined among green and blue light.

Concept introduction:

  • Electromagnetic radiations are a type of energy surrounding us. They are of different types like radio waves, IR, UV, X-ray etc.
  • Visible light lies between the wavelength region 400nm to 700nm
  1. 1. The green light lies in the visible light where it is between 520nm and 560nm.
  2. 2. The blue light lies in the visible light where it is between 490nm and 450nm

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