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What is energy? What is work? List some examples of each.

Chemistry: A Molecular Approach | 3rd Edition | ISBN: 9780321809247 | Authors: Nivaldo J. Tro ISBN: 9780321809247 1

Solution for problem 2E Chapter 6

Chemistry: A Molecular Approach | 3rd Edition

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Chemistry: A Molecular Approach | 3rd Edition | ISBN: 9780321809247 | Authors: Nivaldo J. Tro

Chemistry: A Molecular Approach | 3rd Edition

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Problem 2E

What is energy? What is work? List some examples of each.

Step-by-Step Solution:
Step 1 of 3

Solution: Here, we are going to calculate the wavelength of the given radiation. Also, we are going to identify the appliance emitting the radiation. Step1: The distance between two adjacent crests or troughs is called wavelength. It is denoted by the o o -10 greek letter lambda() and is generally expressed in terms of Angstrom units(A ) [1 A = 10 m] On the other hand, the number of waves which pass through a given point in one second is known as the frequency. It is denoted by the greek letter nu() and is generally expressed in terms of Hertz(Hz) [1 Hz = 1 sec ] -1 If c is the velocity of light, the the relation between wavelength, frequency and velocity of light is given by: c = x ------(1) Step2: a) Given, frequency of the radiation = 2450 MHz 6 6 = 2450 x 10 Hz. [1 MHz = 10 Hz] = 2.450 x 10 sec . -1 [1 Hz = 1 sec ] -1 Speed of light (c) = 2.998 x 10 m/sec8 Therefore, from equation (1), wavelength() = c/ 8 9 -1 Substituting the values, we get, = (2.998 x 10 m/sec) / (2.450 x 10 sec ) = 1.22 x 10 m.1 = 0.122 m. Thus, wavelength of the radiation is 0.122 m. Step3: b) No, the radiation is not visible to human eye. A typical human eye will respond to -7 -7 wavelengths from about 390 to 700 nm, i.e., (3.90 x 10 to 7.0 x 10 ) m. The wavelength of the radiation produced by the kitchen appliance is 0.122 m. Since, this wavelength does not fall in the visible region of the electromagnetic radiation, therefore, it will not be visible...

Step 2 of 3

Chapter 6, Problem 2E is Solved
Step 3 of 3

Textbook: Chemistry: A Molecular Approach
Edition: 3
Author: Nivaldo J. Tro
ISBN: 9780321809247

Since the solution to 2E from 6 chapter was answered, more than 414 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 2E from chapter: 6 was answered by , our top Chemistry solution expert on 02/22/17, 04:35PM. This textbook survival guide was created for the textbook: Chemistry: A Molecular Approach, edition: 3. Chemistry: A Molecular Approach was written by and is associated to the ISBN: 9780321809247. This full solution covers the following key subjects: radiation, electromagnetic, appliance, visible, Photons. This expansive textbook survival guide covers 82 chapters, and 9464 solutions. The answer to “What is energy? What is work? List some examples of each.” is broken down into a number of easy to follow steps, and 11 words.

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