Calculate the maximum theoretical efficiency of a heat engine that operates with the hot steam temperature at 390 °C and the cool steam temperature at 230°C. Please give your answer in two decimals, NOT percentage. For example, efficiency of 0.62. Your Answer: Answer
Q: 170 g of water at 105°C is converted to steam. What is the entropy change of the water that is now…
A: latent heat of boiling water = 2256 KJ/kg = 2256 J/g mass = 170 g Heat required to change the state…
Q: What is the Carnot efficiency (in percent) of a heat engine operating between the temperatures of…
A: Given: The cold temperature of the system is 473 K. The hot temperature of the system is 628 K
Q: A heat engine is being designed to have a Carnot efficiency of 64% when operating between two heat…
A: Carnot efficiency=1-TCTH=TH-TCTH TC= temperature of cold reservoir=16 °C=273.15+16=289.15 K…
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A: T1 = 4oC T2 = 31oC COP = 4.50
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A: Carnot efficiency η=1-TCTH
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Q: 1. (a) What is the hot reservoir temperature of a Carnot engine that has an efficiency of 43% and a…
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Q: An engine absorbed 780,600 J of energy from a reservoir that had a temperature of 714 K and expelled…
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Q: During one cycle, a refrigerator removes 360 J from a cold reservoir and discharges 530 J into its…
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Q: If the temperature inside the fridge is 35°F and the temperature outside is 70°F what is the maximum…
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Q: A Carnot engine takes in heat at a temperature of 820 K and releases heat to a reservoir at a…
A: Given Data: The temperature of the cold reservoir is, Tc=470 K The temperature of the hot reservoir…
Q: heat engine uses a heat source at 510 ∘C∘C and has an ideal (Carnot) efficiency of 22 %% . To…
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Q: What is the maximum efficiency of a heat engine whose operating temperatures are 690 °C and 300…
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Q: a. A Carnot engine takes 1000 Joules of heat from a high temperature reservoir of 560 K and delivers…
A: The given device is carnot engine. Efficiency = work done/heat supplied
Q: A heat engine is designed to do work. This is possible only if certain relationships between the…
A: Temperature of the source = ThHeat absorbed from the source = QhTemperature of the sink = TcHeat…
Q: Give a derivation of the ideal gas law in two dimensions, using dU=TdS+ydA where A is the area and y…
A: The equation you provided, , relates the change in internal energy (dU) of a system to its change in…
Q: An engine uses water at 130 °C and at 30 °C as hot and cold reservoirs, respectively. What is its…
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Q: 170 g of water at 105°C is converted to steam. What is the entropy change of the water that is now…
A: The expression for find change in entropy is ∆s=mLvT
Q: A heat engine is found to have an efficiency of 0.33. If it does 190 J of work per cycle, how much…
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Q: On a cold day, 17400 J of heat leaks out of a house. The inside temperature is 24.0° C, and the…
A: Given Data: The amount of heat leaks is, Q=17400 J The inside temperature of the house is, Th=24°C…
Q: A heat pump removes 2060 J of heat from the outdoors and delivers 3060 J of heat to the inside of a…
A: Given data The heat removed by the pump is QL=2060 J The heat delivered by the house is QH=3060 J…
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…
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Q: A solar collector system delivers heat to a power plant. It is well known that the thermal…
A: The thermal collection efficiency,
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A: The temperature of the surrounding air in kelvin is, Tc=17+273 K=290 K The efficiency of the Carnot…
Q: A typical coal-fired power plant operates with a high-temperature reservoir at Th = 800 K and a…
A: High temperature 800k Low temperature 300k
Q: What is the Carnot efficiency (in percent) of a heat engine operating between the temperatures of…
A: Given: T1=668K, T2=443K The Carnot efficiency of the heat engine operating between the given…
Q: What is the Carnot efficiency of a heat engine operating between the temperatures of 10 C and 100C?…
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- A heat pump has a coefficient of performance of 4.6 . If the heat pump absorbs 30 J of heat from the cold outdoors in each cycle, the heat expelled (in J) to the warm indoors isProblem 5: Suppose a Carnot engine has an efficiency of 45 % and a cold reservoir temperature of 28.5°C. Part (a) What is the hot reservoir temperature, in degrees Celsius, of this Carnot engine? Part (b) What must the hot reservoir temperature be, in degrees Celsius, for a real heat engine that has an efficiency of 45, which is 70% of the maximum efficiency? Assume it has the same cold reservoir, at 28.5°C.A particular power plant operates with a heat-source reservoir at 350°C and a heatsink reservoir at 30°C. It has a thermal efficiency equal to 55% of the Carnot-engine thermal efficiency for the same temperatures. What is the thermal efficiency of the plant? To what temperature must the heat-source reservoir be raised to increase the thermal efficiency of the plant to 35%? Again, η is 55% of the Carnot-engine value
- A heat engine is being designed to have a Carnot efficiency of 60% when operating between two heat reservoirs. (a) If the temperature of the cold reservoir is 20°C, what must be the temperature of the hot reservoir? °C (b) Can the actual efficiency of the engine be equal to 60%? O Yes O No Explain your answer.Suppose a heat engine design makes a square on a PV diagram, using a monatomic gas. The high pressure is 3P and low pressure is P. The high volume is 3V and low volume is V. What is the efficiency of the heat engine?A heat engine operates between a reservoir at 15°C and one at 220°C. What is the maximum efficiency possible for this engine? Do you think the engine likely to achieve this efficiency?
- A Styrofoam cup holding 142 g of hot water at 1.00 ✕ 102°C cools to room temperature, 21.0°C. What is the change in entropy of the room? (Neglect the specific heat of the cup and any change in temperature of the room. The specific heat of water is 4,186 J/(kg · °C).)__________ J/KA Carnot heat engine operates between thermal reservoirs at Th and Tc. What is the theoretical efficiency, η, of this engine? Part (a) Write an expression for thermal efficiency, η. Part (b) Solve numerically for the thermal efficiency, η, assuming that Th = 910°C and Tc = 310°C.A heat engine is being designed to have a Carnot efficiency of 59% when operating between two heat reservoirs. (a) If the temperature of the cold reservoir is 22°C, what must be the temperature of the hot reservoir? °C(b) Can the actual efficiency of the engine be equal to 59%? YesNo Explain your answer.