Which of the following statements about thermal machines or refrigerators is correct? a) A refrigerator is that device where the main objective is for the working substance to extract heat from a reservoir using work. b) A refrigerator is a device where the main objective is to convert all the heat absorbed by the working substance into useful work. c) A thermal machine is a device in which the main objective is to do work on the working substance and have it extract heat from a reservoir. d) A thermal machine is a device in which the main objective is to do work on the working substance and have it deposit heat.

Which of the following statements about thermal machines or refrigerators is correct? a) A refrigerator is that device where the main objective is for the working substance to extract heat from a reservoir using work. b) A refrigerator is a device where the main objective is to convert all the heat absorbed by the working substance into useful work. c) A thermal machine is a device in which the main objective is to do work on the working substance and have it extract heat from a reservoir. d) A thermal machine is a device in which the main objective is to do work on the working substance and have it deposit heat.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter21: Heat And The First Law Of Thermodynamics

Section: Chapter Questions

Problem 4PQ

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