Consider an engine with efficiency of 25 percent. How much must the temperature of the hot reservoir increase, so that the efficiency increase to 50 percent. The temperature of the cold reservoir remains at 5 degree.

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 engine absorbs 500 J of heat and rejects 100 J of heat to the cold reservoir in each cycle.  What…

A: Given : Qh = 500 J Qc = 100 J

Q: Calculate the ideal efficiency of an engine in which fuel is heated to 2700 K and the surrounding…

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Q: An ideal heat engine takes in heat from a reservoir at 380 °C and has an efficiency of 28%: If the…

A: In first case temperature of hot reservoir = 380 degrees

Q: What is the efficiency of an ideal heat engine that operates on a Carnot cycle between 70 °F and…

A: Given: Temperature, T1=70 °F  Temperature, T2= 1000 °F To determine the efficiency of an ideal heat…

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 happens to the efficiency of the heat engine when the amount of heat it absorbs from the hot…

A: Given data:  Heat absorbed from hot reservoir = Heat released to cold reservoir Qh = Qc Required:…

Q: Suppose a Carnot engine that has an efficiency of 52% and a cold reservoir temperature of 31 degrees…

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Q: The motor in a refrigerator has a power of 200W. If the freezing compartment is at 270 K and the…

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

A: Given:  Efficiency = 100 %

Q: In a Carnot engine the hot reservoir is 67.0°C warmer than the cold reservoir. The engine's…

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Q: If a heat engine extracts 50 million Joules of useful work when 100 million Joules of heat energy is…

A: Input heat energy = 100 million joules Work done = 50 million joules

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: A solar energy based heat engine which receives 80 kJ of heat at 100 deg C and rejects 70 kJ of heat…

A: Heat absorbed = 80 kJ Temperature of hot reservoir = 100oC Heat rejected = 70 kJ temperature of cold…

Q: in each cycle a refrigerator absorbs heat of 3.4x10^4J from the cold reservoir. It has a coefficient…

A: Given Data: Heat extracted from the cold reservoir, Q2 = 3.4x104 J/cycle. Coefficient of performance…

Q: A heat engine operates with sink temperature 25° with the efficiency of 30%. By how many kelvins…

A: Given: The engine operates with sink temperature 25oC when it have an efficiency of 30%. To find:…

Q: A steam engine absorbs 7.91×105J and expels4.99 × 105J in each cycle. Assume that all ofthe…

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Q: A Carnot engine takes in heat from a reservoir at 500°C and releases heat to a lower-temperature…

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Q: A Carnot heat engine has an efficiency of 0.700. If it operates between a deep lake with a constant…

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Q: If the cold temperature reservoir of a Carnot engine is held at a constant 331 K, what temperature…

A: Given, Engine efficiency (e) = 0.55 Cold temparature (Tc) =331 k

Q: A refrigerator (located in a 22°C kitchen) removes heat from the cold compartment (at 3.4°C) at a…

A: Given data: Higher temperature, TH=220C=22+273 K=295 K Lower temperature, TL=3.40C=3.4+273 K=276.4 K…

Q: Is it possible to construct a heat engine that creates no thermal pollution?

A: Heat engine is an engine that takes in energy as heat and partially converts it into other forms…

Q: If 40 million Joules of energy is put into the hot reservoir and the engine transfers 22 million…

A: Given Data:- Energy put into the hot reservoir is QH=40 million Joules Energy transfered to the cold…

Q: A 37 percent efficient engine loses 400 J of heat during each cycle. What work is done, and how much…

A: The given data are listed below with appropriate variables. Here, η denotes the efficiency and QL…

Q: certain gasoline engine has an efficiency of 32.0%. What would the hot reservoir temperature (in °C)…

A: Given Temperature of sink = 2100 C = 210+273 = 483 K Efficiency = 32 %

Q: An engine with an efficiency of 0.34 absorbs 55 J from a heat reservoir in each cycle. If it…

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Q: A Carnot engine takes in heat from a reservoir at 460°C and releases heat to a lower-temperature…

A: Given, Hot reservoir temperature, Th=4600 C=733.15 K, and cold reservoir temperature, Tc=1400…

Q: Consider an engine with efficiency of 25%. How much must the temperature of the hot reservoir…

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Q: How much work is done by a gasoline engine that is 20 % efficient and loses 750 J to the cooling…

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Q: In an ideal heat engine the cold sink is at 0∘C. If 10 kJ of heat is withdrawn from the hot source…

A: Temperature of cold sink = 0o C Heat withdrawn from the source = 10 kJ work done = 3 kJ

Q: Carnot engine whose low-temperature reservoir is at 17Chas an efficiency of 40%. By how much should…

A: Given:- T2 =17o C = 17 + 273 = 290 K n1 = 40% = 0.4 n2 = 50% = 0.5

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: Which of the given below shows the highest efficiency? O efficiency of 55% O 100 joules of thermal…

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Q: What is the best coefficient of performance possible for such a heat pump, if it has a hot reservoir…

A: The temperature of the hot reservoir is, TH=45.0°C+273=318 K The temperature of the cold reservoir…

Q: A refrigerator has a coefficient of performance of 2.0. In each cycle it absorbs 3.4×104 J of heat…

A: Coefficient of performance, COP = 2Heat absorbed, Q = 3.4×104 JHeat released, Qh = ?

Q: he remaining percent?

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Q: Calculate the maximum efficiency of an engine operating between 60 Co and 160 C°. 28% A O 30% .B O…

A: Maximum efficiency of the heat engine will be obtained when it works in the Carnot cycle. The…

Q: Suppose a heat engine design makes a square on a PV diagram, using a monatomic gas. The high…

A: The efficiency of heat engine is given by, η=wQin where, Qin is the heat absorbed during cycle, and…

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

Q: Steam locomotives have an efficiency of 22.0% and operate with a hot steam temperature of 528 C.…

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Q: A heat engine operates between a reservoir at 27°C and one at 374°C. What is the maximum efficiency…

A: Given : Tc = 27°C = 27 + 273 = 300 K TH = 374°C = 374 + 273 = 647 K

Q: A heat engine produces 2000 J of work while operating between 210 degrees Celsius and 35 degrees…

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