(a) Suppose you want to design a steam engine that has heat transfer to the environment at 270ºC and has a Carnot efficiency of 0.800. What temperature of hot steam must you use?(b) What is unreasonable about the temperature? (c)Which premise is unreasonable?

Q: When 1.60×105 J of heat transfer occurs into a meat pie initially at 20.0º C , its entropy increases…

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Q: A Carnot engine is operated between two heat reservoirs at temperatures 520 K and 300 K. If the…

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Q: Suppose that a heat engine does 6000 J of work while the heat input is 9000 J. What is the…

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

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Q: A standard basketball has a mass of 1.4 pounds. This basketball is lifted (3 + y/20) ft above the…

A: Write the given values of this problem. m=1.4 poundsm=1.4×0.45359237m=0.635 kgh=3+y20…

Q: Does a heat engine that has a thermal efficiency of 100 percent necessarily violate (a) the first…

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Q: A heat engine has quarter the thermal efficiency of a carnot engine operating between 85C and 445C.…

A: Given values -  Tcold=85o C =85+273=358 K THot=445o C=445+273=718 K Therefore,  Efficiency of Carnot…

Q: What is the decrease in entropy (in J/K) of 26.5 g of water that condenses on a bathroom mirror at a…

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Q: Calculate the net work output (in ) of a heat engine following path ABCDA in the figure, where v,-…

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Q: What is the efficiency of a heat engine that uses an input heat of 6.70 x 104 J and rejects 3.28 x…

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Q: When 1.60×105J of heat transfer occurs into a meat pie initially at 20.0º C , its entropy increases…

A: Given quantities: heat transfer (dQ) = 1.60×105 J increase in entropy (dS) = 480 J/K initial…

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: An inventor is marketing a device and claims that it takes 25. 00 kJ of heat at 327.00°C and…

A: Given Heat input = 25. 00 kJ Higher temperature = 327.00°C  environment temperature or lower…

Q: A firebox is at 750 K, and the ambient temperature is 300 K. The efficiency of a Carnot engine doing…

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Q: What is the efficiency of a gasoline engine that receives 194.5 J of energy from combustion and…

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Q: What is the decrease in entropy (in J/K) of 28.5 g of water that condenses on a bathroom mirror at a…

A: The temperature of a bathroom is, T=35 °C=308 K The mass of water is, m=28.5 g=0.0285 kg The amount…

Q: A nuclear power plant operates at 70 % of its maximum theoretical (Carnot) efficiency between…

A: Given: The source temperature is 620 °C. The sink temperature is 330 °C. The efficiency of the power…

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: Find the relation between the efficiency of a reversible ideal heat engine and the coefficient of…

A: The efficiency of the ideal heat engine is given by The efficiency of the reversible refrigerator…

Q: What is the decrease in entropy of 25.0 g of water that condenses on a bathroom mirror at a…

A: Given data The mass of water is m=25.0 g The temperature is T=35.0 oC The latent heat of…

Q: A real (non-Carnot) heat engine, operating between heat reservoirs at temperatures of 524 and 287…

A: given data 2.4kJ of net work 3.6kJ of heat tempratures are 524k and 287k thermal efficiency = ?

Q: Consider an inefficient engine that draws 200 J of heat from a hot reservoir at 100o C, converts 48…

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Q: An ideal heat pump, one that satisfies the Carnot relationship W = Qh11 - Tc>Th2, is used to…

A: Given: The room temperature is T=293 K. The outdoor temperature is T'=273 K. The work done is W=275…

Q: Can any other engine achieve efficiency more than the Carnot engine?

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Q: A real (non- Carnot) heat engine, operating between heat reservoirs at temperatures of 450 K and 270…

A: Write the expression for thermal efficiency. In case of Carnot cycle.

Q: An inventor claims a new cyclic engine that uses organic grapejuice as its working material.…

A: heat absorbed, QH = 1250 J  temperature of hot reservoir, TH = 1010 K work, W = 1120J temperature of…

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

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Q: Consider a heat engine that uses reservoirs at 800.°C and 0.00 °C. Calculate the maximum possible…

A: The expression for the efficiency of the heat engine is given by,  η=1-T2T1×100 -----(1) Here, η is…

Q: A Carnot engine operates with TL=20°C and has anefficiency of 25%. By how many kelvins should the…

A: formula of efficiency of Carnot engine is as follows; η=1-TLTH…

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: P (10º N/m²)´ 2.6 2.0 B D 1.0 0.6 V1 V2 V (10-3 m)

A: The work output of the heat engine following path ABCDA will be equal to the area covered by the…

Q: A Carnot engine operates between reservoirs at 600 and 300 K. If the engine absorbs 100 J per cycle…

A: Given  parameters are: Temperature of reservoir T1 = 600 k Temperature  of sink T2 = 300 k Energy…

Q: A heat engine operates between a reservoir at 15°C and one at 220°C. What is the maximum efficiency…

A: Given that: T1=2200CT2=150Cη=Efficiency=?

Q: Is there any way to increase the efficiency of a Carnot heat engine other than by increasing TH or…

A: Given: Efficiency of Carnot's engine

Q: An inventor claims to have devised a cyclic engine which exchanges heat with reservoirs 25ºC and…

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Q: What is the decrease in entropy (in J/K) of 30.0 g of water that condenses on a bathroom mirror at a…

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Q: In a thermodynamic cycle, an ideal thermal engine atsorbs an amount of heat Q,0 from a hot reservoir…

A: Given : Heat absorbed = Q2 Work done = L Heat exchanged with cold reservoir = -4L