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Get Full Access to Thermodynamics: An Engineering Approach - 8 Edition - Chapter 6 - Problem 6116
Get Full Access to Thermodynamics: An Engineering Approach - 8 Edition - Chapter 6 - Problem 6116

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Solved: The interior lighting of refrigerators is usually

ISBN: 9780073398174 171

Solution for problem 6116 Chapter 6

Thermodynamics: An Engineering Approach | 8th Edition

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Thermodynamics: An Engineering Approach | 8th Edition

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Problem 6116

The interior lighting of refrigerators is usually provided by incandescent lamps whose switches are actuated by the opening of the refrigerator door. Consider a refrigerator whose 40-W lightbulb remains on about 60 h per year. It is proposed to replace the lightbulb by an energy-efficient bulb that consumes only 18 W but costs \$25 to purchase and install. If the refrigerator has a coefficient of performance of 1.3 and the cost of electricity is 8 cents per kWh, determine if the energy savings of the proposed lightbulb justify its cost.

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 Allotropy- the characteristic of an element being able to exist in more than one crystal structure, depending on temperature and pressure.  Amorphous material- a material that does not have long-range order for the arrangement of its atoms (e.g., silica glass).  Anion- a negatively charged ion produced when an atom, usually of a non-metal, accepts one or more electrons.  Atomic mass- the mass of the Avogadro constant of atoms, g/mol. Normally, this is the average number of protons and neutrons in the atom. Also called the atomic weight  Atomic mass unit- the mass of an atom expressed as 1/12 the mass of a carbon atom with twelve nucleons.  Atomic number- the number of protons in an atom  Aufbau principle- a graphical device used to determine the order in

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ISBN: 9780073398174

This full solution covers the following key subjects: . This expansive textbook survival guide covers 17 chapters, and 2657 solutions. Thermodynamics: An Engineering Approach was written by and is associated to the ISBN: 9780073398174. The answer to “The interior lighting of refrigerators is usually provided by incandescent lamps whose switches are actuated by the opening of the refrigerator door. Consider a refrigerator whose 40-W lightbulb remains on about 60 h per year. It is proposed to replace the lightbulb by an energy-efficient bulb that consumes only 18 W but costs \$25 to purchase and install. If the refrigerator has a coefficient of performance of 1.3 and the cost of electricity is 8 cents per kWh, determine if the energy savings of the proposed lightbulb justify its cost.” is broken down into a number of easy to follow steps, and 90 words. Since the solution to 6116 from 6 chapter was answered, more than 616 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: Thermodynamics: An Engineering Approach, edition: 8. The full step-by-step solution to problem: 6116 from chapter: 6 was answered by , our top Engineering and Tech solution expert on 12/23/17, 04:44PM.

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Solved: The interior lighting of refrigerators is usually