Q/ Two Carnot refrigerators operate in series between two reservoirs maintained at 20°C and 200°C, respectively. The energy output by the first refrigerator is used as the heat energy input to the second refrigerator. If the COPS of the two refrigerators are the same, what should the intermediate temperature be?

Q: The heat removal rate from a refrigerated space is 7.2 kW and the power input to the compressor is…

A: Given, Rate of heat removal from refrigerated space = Q2 = 7.2 kW Power input = W = 1.8 kW…

Q: A household freezer opera a rate of 2 kW to maintain power input required to o

A: Calculated the smallest power input(KW) required to operate the freezer.

Q: It is impossible to construct an engine, operating between two given temperature reservoirs, that is…

A: Any engine operating between two given temperature reservoir its maximum efficiency can be equals to…

Q: scientist claims to have developed a refrigerator that produces a 350 kW cooling effect for a 3 oC…

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Q: You have three devices: a Carnot heat engine, a Carnot heat pump and a Carnot refrigerator. Use a…

A: Given, Cold reservoir temperature = TC = -18 oC = 255 K Minimum hot reservoir temperature = Thmin =…

Q: A household refrigerator draws 113.9 W of electricity in order to keep its refrigerated compartment…

A: Given Data Electricity consumed by refrigerator, W=113.9W Heat transfer from room to the…

Q: The temperature inside a Carnot refrigerator is8.34°C. What is the high temperature, Th, in Celsius…

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Q: A refrigerator working between 283 K to 310K and extracting 340 J of heat. How much work required to…

A: Given data: -  The higher temperature is TL = 310 K. The lower temperature is TL = 283 K. The…

Q: A refrigerator has a coefficient of performance of 1.6. How much work in KJ must be supplied to this…

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Q: Heat engine and refrigerator. Consider a heat engine operating between temperatures Th and Tj.…

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Q: 1. A Carnot refrigerator operates between two reservoirs, one at 250K and the other at 300K. It is…

A: The objective of the question is to determine the energy delivered to the high temperature reservoir…

Q: A new parabolic dish solar concentrator is being developed to supply electricity to a small remote…

A: Qs=200 KwTTR1=700° CTTR1=700+273=973 KTTR2=25+273=298 KWnet=120 Kw

Q: A refrigeration unit absorbs 1 kW of heat from the cold reservoir and rejects 1.3 kW of heat to the…

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Q: A heat engine receives 1000 kJ/min of heat from a reservoir at 500 K. It rejects heat to a reservoir…

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Q: The ice maker inside a refrigerator makes ice cubes at 0.0°C from water that is at 17.2°C when it…

A: Given data: Initial water temperature, T1 = 17.2°C. Final ice temperature, T2 = 0.0°C. The energy…

Q: Water is being cooledd in a closed container while being stirred by a paddle wheel. During this…

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Q: An older refrigerator uses 4.22 kWh per day while an Energy Star refrigerator uses 0.78 kWh per day…

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