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An inventor claims to have invented 4 refrigerators, each of which operates between constanttemperature reservoirs of 270 and 300 K

Mechanical Engineering Mar 27, 2022

An inventor claims to have invented 4 refrigerators, each of which operates between constanttemperature reservoirs of 270 and 300 K. Consider the 1st and 2nd laws of thermodynamics to evaluate the refrigerators. For each refrigerator, state and explain (with calculations) why it does or doesn't violate the 1st and 2nd Laws of Thermodynamics. Be sure to state clearly the criteria for violating the 1st and 2nd Laws. For each device that does violate the 1st of 2nd law, propose, and show with calculations, a change in the minimum number of parameters (QH, QL, or W) such that the 1st and 2nd laws are not violated. Refrigerator (1,2,3,4) QH (J)=300,700,600,200; QL (j)= -275,- 650,-550, -175; W (J) =40,60,50,25

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