Rank the following heat engines in order from highest to lowest thermal efficiency. (i) An engine that in one cycle absorbs 5000 J of heat and rejects 4500 J of heat; (ii) an engine that in one cycle absorbs 25,000 J of heat and does 2000 J of work; (iii) an engine that in one cycle does 400 J of work and rejects 2800 J of heat.

Q: A gasoline engine absorbs 2.9 kJ of heat and performs 0.7 kJ of mechanical work in each cycle. The…

A: Heat absorbed (Q)= 2.9 KJ = 2.9× 10³ J Work done (W)= 0.7 KJ = 0.7× 10³ J   We know that…

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: 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: "A heat engine accepts 200 J of heat from a hot reservoir, does work, and releases 160 J to a cold…

A: Given  Heat taken Q1 = 200 J  Heat given to sink Q2 = 169 J

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

A:

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: Calculate the efficiency of a heat engine which extracts 3 billion Joules of useful work when 10…

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

A: Given:  Efficiency = 100 %

Q: All the following statements define the second law of thermodynamics except, a. Processes that…

A: We have to find that which statement out of four given statement is not supported by second law of…

Q: A heat source of unknown temperature supplies energy of (74 + 700)k] to a Carnot heat engine. If…

A: It is given that,

Q: The energy output of a heat pump is greater than the energy used to operate the pump. Why doesn’t…

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Q: A heat engine takes in 400 J of thermal energy and performs 100 J of work in each cycle. The…

A: Efficiency of heat engine is,  η=WQh Here, W is work done and Qh is heat taken by engine.  Given :…

Q: Consider an idealized engine that when supplied with 100 J of heat at a temperature of 1000 K…

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Q: Suppose a hypothetical engine absorbs 700 J of heat from a hot reservoir and performs 700 J of work,…

A: Zeroth law tells that if a system is thermodynamically equilibrium to the 2nd and 3rd system then it…

Q: The 2nd Law of Thermodynamics implies that a heat engine can never completely convert Heat to…

A: The answer is below

Q: Justify the second Law of thermodynamics

A: Explanation: The limitation of the first law of thermodynamics is that it does not say anything…

Q: In each cycle of its operation, a refrigerator removes 19 J of heat from the inside of the…

A: The amount of work done to operate the refrigerator is calculated using the following formula: W =…

Q: What is wrong with the claim that a cyclical heat engine does 4.00 kJ of work on an input of 24.0 kJ…

A: Energy conservation law states that Energy can never be created or destroyed, it can only be…

Q: would a 100% efficient engine violate the first law of thermodynamics? What about a workless…

A: would a 100% efficient engine violate the first law of thermodynamics? What about a workless…

Q: You design an engine that takes in 26 kJ of heat at 720 K in each cycle and rejects heat at a…

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Q: An engine that has an efficiency of 25% takes in 200 J of heat during each cycle. If the engine…

A: heat absorbed in one cycle = 200 J Heat absorbed in 4 cycles = 200 * 4  = 800 joules Heat absorbed…

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: In a cyclic process, a heat engine absorbs 600 J of heat from a heat source, does work, and ejects…

A: The efficiency of a heat engine is, η=WQinη=Qin-QoutQin Here, Qin is the heat absorbed and Qout is…

Q: A heat engine absorbs 2500 J of heat at 250°C and expels 2000 J at a temperature of 50°C. The change…

A: Given, Q1 = 2500 J T1 = 250 C∘ = 250+273.15 = 523.15 K Q2 = 2000 J T2 = 50 C∘ = 50+273.15 = 323.15 K…

Q: What is the highest possible efficiency of a heat engine working between a high temperature…

A: Given TH=600℃ = 873K TC=20℃ = 293K we have to find efficiency Efficiency η = 1- (TC÷TH)

Q: "An engine manufacturer makes the claim that the engine they have developed will, on each cycle,…

A: Given : Heat taken , Q1 = 100 J Mechanical Work, W = 80 J  Heat out, Q2= 20 J  Temperature of…

Q: What is the change in entropy of 500 grams of steam at 110 degrees Celsius when it is condensed to…

A: Mass of steam = 500 gram = 0.5 kg. Temperature = 110°C Total heat required = Latent heat of…

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

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Q: 8000 J of heat from a hot reservoir is put into a reversible (Carnot) heat engine whose hot and cold…

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Q: What is the change in entropy in converting 1.0 kg of ice at 0.0 degree celsius to 1.0 kg water at…

A: mass of solid ice at 0° C , m = 1.0 kg is converted into water at 0° C of weight 1.0 kg  To find =…

Q: Calculate the maximum possible efficiency of a heat engine that uses surface lake water at 20.7°C as…

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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: A heat source generates heat at a rate of 63.0 W (1 W=1 J/s). How much entropy does this produce per…

A: Given:Heat generation rate = 63 W (1 W=1 J/s)Surrounding temp. = 27.2 °CHeat transfer is…

Q: On a hot summer day, 2.00 x 10° J of heat transfer into a parked car takes place, increasing its…

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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

Q: 18. With 2.56 x 10°) of heat transfer into this engine, a given cyclical heat engine can do only…

A: Efficiency of an engine is defined as the ratio of work done to heat provided to engine. Efficiency…

Q: The heat engine operates between temperatures of 320 K and 610 K. In one cycle, the machine takes…

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

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Q: What is wrong with the claim that a cyclical heat engine does 4.00 kJ of work on an input of 24.0 kJ…

A: Work output is the difference between the heat transfer into the engine and heat transfer to the…