What is the coefficient of performance of a refrigerator that operates with Carnot efficiency between temperatures "3.00°C and &27.0°C?
Answer to relevant QuestionsWhat is the maximum possible coefficient of performance of a heat pump that brings energy from outdoors at "3.00°C into a 22.0°C house? Note that the work done to run the heat pump is also available to warm up the house.If a 35.0%-efficient Carnot heat engine (Fig. 22.2) is run in reverse so as to form a refrigerator (Fig. 22.5), what would be this refrigerator’s coefficient of performance?At a pressure of 1 atm, liquid helium boils at 4.20 K. The latent heat of vaporization is 20.5 kJ/kg. Determine the entropy change (per kilogram) of the helium resulting from vaporizationA rigid tank of small mass contains 40.0 g of argon, initially at 200°C and 100 kPa. The tank is placed into a reservoir at 0°C and allowed to cool to thermal equilibrium. (a) Calculate the volume of the tank. (b) ...A house loses energy through the exterior walls and roof at a rate of 5 000 J/s = 5.00 kW when the interior temperature is 22.0°C and the outside temperature is "5.00°C. Calculate the electric power required to maintain ...
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