The coefficient of performance for a freezer is 7.8. How much heat must be extracted by the freezer to expel 2.5 kJ of heat into the reservoir?

Q: A refrigerator has a coefficient of performance of (5.0x10^0). When removing (3.600x10^4) J from…

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Q: An ideal heat pump is being considered for use in heating an environment with a temperature of…

A: Given:  temperature of hot reservoir, TH = 22 degree C = 295 K  Coefficient of performance, COP = 12…

Q: What is the carnot efficiency of a heat engine that operates between a hot reservoir at 500K and a…

A: Efficiency of the Carnot heat engine is,

Q: A heat pump has a coefficient of performance of 3.80 and operates with a power consumption of 7.03 ×…

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Q: Suppose you have an ideal refrigerator that cools an environment at −20.0ºC and has heat transfer to…

A: Given: The temperature of the cold reservoir is -20.0° C. The temperature of the hot reservoir is…

Q: A heat pump delivers heat at a rate of 7.81 KW of 10.0 HR if it's coefficient of performance is 6.85…

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Q: What is the coefficient of performance of an ideal heat pump that has heat transfer from a cold…

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Q: What is the carnot efficiency of a heat engine operating between the temperatures of 300C (573K) and…

A: Carnot efficiency is the theoretical maximum efficiency of a heat engine.

Q: What is the coefficient of performance of an ideal heat pump that has heat transfer from a cold…

A: The formula to find the coefficient of performance of the heat pump is, COPhp=1ηC=ThTh-TC Here Th…

Q: What is the maximum possible efficiency (in Percent) of a steam engine working between a hot…

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Q: A heat engine having the maximum possible efficiency has an efficiency of 35.0% when operating…

A: The given values are,

Q: A refrigerator has a coefficient of performance of 2. The ice (cjce = 2090 J/kg.°C) tray compartment…

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Q: A heat engine with 100% efficiency is only a theoretical possibility. Explain.

A: Given:  Efficiency = 100 %

Q: A steam turbine operates at a boiler temperature of 450 K and an exhaust temperature of 300 K. What…

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Q: A refrigerator has a coefficient of performance of 1. The ice (cice = 2090 J/kg.°C) tray compartment…

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Q: What is the coefficient of performance of an ideal heat pump that has heat transfer from a cold…

A: The expression for the co-efficient of performance of an ideal heat pump is, COP=T2T1-T2 Here, T1 is…

Q: 4. A heat engine operates between energy reservoirs of 75°C and 450°C. What is the maximum…

A: A heat engine is operating between energy reservoirs of 75 degree C and 450 degree C. So temp. at…

Q: Calculate the work done by the refrigerator if it is having a coefficient of performance of 2.3 and…

A: Given:Coefficent of performance is 2.3Release 200 J of heat energy to the reservoirTo Find:Work Done…

Q: What is the coefficient of performance of an ideal heat pump that has heat transfer from a cold…

A: TC = -230C = -23 + 273 = 250 K TH = 360C = 36 + 273 = 309 K CP = ?

Q: AN IDEAL ENGINE HAS AN EFFICIENCY OF 0.725 AND USES GAS FROM A HOT RESERVOIR AT A TEMPERATURE OF…

A: Given data: Efficiency of ideal engine is, η=0.725. Temperature of hot reservoir is, TH=622 K.

Q: What is the coefficient of performance of an ideal heat pump that has heat transfer from a cold…

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Q: A refrigerator has a coefficient of performance of 3.25. How much work must be suppliedto this…

A: Given data: Coefficient of performance =3.25 Change in heat,Q=261 J Let work done be W: Applying The…

Q: What is the coefficient of performance of an ideal heat pump that pumps heat from a cold temperature…

A: given,TL=-23.9°C     =249.25 KTH=32°C      =305.15 Kcoefficient of performance:COP=THTH-TL

Q: What is the coefficient of performance of a refrigerator that operates with Carnot efficiency…

A: The coefficient of performance of a refrigerator is,

Q: what is the maximum possible coefficient of performance of a heat pump that brings energy from…

A: Given: Temperature, Th = 22o C = 273+22 = 295 K and Tc = 3o C = 273+3 = 276 K

Q: The temperature of the cold reservoir of a refrigerator is -12 °C while in its hot reservoir is 33…

A: Given Sink temperature T2 = -12 oC = 273+(-12) = 261 K Source temperature T1 = 33 oC =273+33 =306 K

Q: A refrigerator uses 1750 J of mechanical work to absorb 3750J from cold reservoir at 260 K. What is…

A: Given: Mechanical work uses by refrigerator = 1750 J Desired effect from cold reservoir = 3750 J…

Q: What is the coefficient of performance of an ideal heat pump that has heat transfer from a cold…

A: The coefficient of performance of ideal heat pump is given by, COP=THTH-TC Here, TH is the hot…

Q: What is the coefficient of performance of an ideal heat pump that has heat transfer from a cold…

A: cold temperature = -26 C = 247 K Hot temperature = 36 C  = 36 + 273  = 309 K

Q: The temperature of the cold and hot reservoirs between which a Carnot refrigerator operates are −73…

A: The coefficient of performance of a Carnot refrigerator is given by, Given,

Q: What is the coefficient of performance of an ideal heat pump that has heat transfer from a cold…

A: Given:  Tc =  25 C = - 25 + 273 = 248 K  Th = 40 C = 40 + 273 = 313 K

Q: An ideal heat pump is being considered for use in heating an environment with a temperature of…

A: Coefficient of performance of heat pump is,  CP=THTH-TC Here, TH is hot and TC is cold temperatures.…

Q: A refrigerator has a coefficient of performance of 2. The ice (cice = 2090 J/kg.°C) tray compartment…

A: Specific heat of water C1=4184 J/kgoC, specific heat of ice C1=2090 J/kgoC, latent heat of fusion…

Q: A refrigerator operates between temperatures of 315 and 279 K. What would be its maximum coefficient…

A: η=QcW=QcQH-QC=Qc/QH1-QCQH

Q: The coefficient of performance of a refrigerator is 2.6, and the compressor is using power 450 W.…

A: Given value--- The coefficient of performance= 2.6 . power = 450 W.  We have to find--- With what…

Q: An engine has an efficiency of 1 When the temperature of sink is reduced by 62°C, its efficiency is…

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Q: What is the coefficient of performance of an ideal heat pump that has heat transfer from a cold…

A: The expression for the co-efficient of performance of an ideal heat pump is, COP=THTH-TC Here, TH is…

Q: A heat engine operates between a reservoir at 30°C and one at 422°C. What is the maximum efficiency…

A: T2 = 30 degree C = 303 K  T1 = 422 degree C = 695 K

Q: The coefficient of performance of a refrigerator is 2.6, and the compressor is using power 450 W.…

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Q: A heat pump has a coefficient of performance of 3.75 and operates with a power consumption of 7150…

A: The coefficient of performance of the heat pump is, COP=3.75 The power consumption is, Pin=7150 W…

Q: 50 J of work are done on a refrigerator with a coefficient of performance of 4.0. How much heat is…

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Q: A heat engine uses a heat source at 530 ∘C and has an ideal (Carnot) efficiency of 28 % . To…

A: The ideal (Carnot)  efficiency of a heat engine is given by,  ηideal(%)=1−TLTH×100% Where heat…

Q: A refrigerator has a coefficient of performance of 4.0. When removing 2.4×104 J from inside the…

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Q: What is the ideal efficiency of a heat engine that operates with its hot reservoir at 500 K and its…

A: The efficiency of the heat engine is given by  η= 1 - TcTH