A refrigerator has a coefficient of performance of 2.10. Ineach cycle it absorbs 3.10 * 104 J of heat from the cold reservoir. (a)How much mechanical energy is required each cycle to operate the refrigerator?(b) During each cycle, how much heat is discarded to thehigh-temperature reservoir?

Q: An engine with an output of 249.0 W has an efficiency of 25.0 %. It works at 10.00 cycles/s. How…

A: It is given that the output power is 249.0W. It is the work done per second. This implies, 249.0 J…

Q: In one cycle of an engine, 1.71 kJ of energy is absorbed from a hot reservoir at 277°C, and 1.21 kJ…

A: In the question given engine input and output heat at the temperatures we have to find ----  (a)…

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A:

Q: A refrigerator has a coefficient of performance equal to 5. The refrigerator takes in 120 J of…

A: Refrigerator's performance coefficient =cp= 5 Energy in each cycle, Qc= 120 J

Q: The temperature of the cold reservoir of the engine is 305 K. It has an efficiency of 0.23 and…

A: The problem can be solved by using the concept of efficiency of a heat engine. The answer for the…

Q: Problem 2: To make ice, a freezer that is a reverse Carnot engine extracts 42 kJ as heat at -15°C…

A: Given, Reverse engine extracts heat from the cold reservoir, Q = 42 kJ  temperature of cold…

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A: Represent it on diagram for better understanding a) Efficiency of heat engine can be determined as

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A: Given: The high temperature of the engine is 492 K. The low temperature of the engine is 290 K. The…

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A: The efficiency (η) of a Carnot cycle is given by: η=(Tc-Th)Tc Where:Tc is the temperature of the…

Q: An engine absorbs 1.74 kJ from a hot reservoir at 277°C and expels 1.19 kJ to a cold reservoir at…

A:

Q: In this problem a heat engine, each cycle, absorbs an amount of energy Qh = 1845 J from a hot…

A:

Q: 6. A lonely party balloon with a volume of 2.40 L and containing 0.100 mol of air is left behind to…

A: Given data, Initial volume of the balloon = 2.4 L Final volume of the gas = 425 m3 Moles of the gas…

Q: from a hot reservoir at

A:

Q: An ideal gas heat engine operates in a Carnot Cycle between temperatures of 266°C and 115°C. It…

A: Given data: Thot = 266°C = 539 K Tcold = 115°C = 388 K   Solution: Efficiency = 1 - ( Tcold / Thot )…

Q: During each cycle, a refrigerator ejects 645 k) of energy to a high-temperature reservoir, and takes…

A: Given :      Heat ejects to high - temperature reservoir, QH = 645 kJ      Heat takes from low -…

Q: An engine absorbs 1.71 kJ from a hot reservoir at 277°C and expels 1.22 kJ to a cold reservoir at…

A: Given data: The heat absorbed by the engine is Qa=1.71 kJ The temperature of the hot reservoir is…

Q: During each cycle, a Carnot engine absorbs 780 J as heat from a high-temperature reservoir at 378 K,…

A:

Q: (a) What is the mechanical power output of this engine kW (b) How much energy does it expel in each…

A: GivenT1=74°CT2=360°CQ1=21600 Jt=3 s

Q: A heat engine takes in 340 J of energy from a hot reservoir and performs 22.0 J of work in each…

A: (a) Find the efficiency of the engine. e=WQ×100=22.0 J340 J×100=0.065×100=6.5%

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: A Carnot engine operates between two temperatures of 300°C and 130°C while absorbing 650 kJ of heat…

A:

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: thermal efficiency

A:

Q: part 1 of 3 An engine absorbs 2243 J from a hot reser- voir and expels 1180 J to a cold reservoir in…

A:

Q: A heat engine operates in a Carnot cycle between 78.0°C and 345°C. It absorbs 20,000 J of energy per…

A: temperature of cold reservoir, Tc =78.0°C = 351 K temperature of hot reservoir, TH = 345°C = 618 K…

Q: a refrigerator removes heat from the cubicle at the rate of 20kj and ejects 24kj into a room per…

A: Given in question:   Heat removed from the cubicle per cycle(QR) = 20 KJ…

Q: Engine A receives 4 times more input heat, produces 6 tir more work, and rejects efficiency of (a)…

A:

Q: A heat engine operates between a high temperature of 1000 °C and a low temperature of 500 °C. Assume…

A: This problem can be solved using the formula for efficiency of carnot engine.

Q: one cycle of an engine, energy is absorbed fröm å hốt réšérvoir at energy is expelled to a cold…

A: Given data  Q1 = 1.71 kJ and Q2 = 1.22 Kj  t = 0.295 s

Q: Find the energy expelled to the hot reservoir of a refrigerator has a coefficient of performance…

A: Given :- Coefficient of performance COP=3  Energy taken from cold reservoir Q1=179 J    To Find :-…

Q: (a) What is the best coefficient of performance for a heat pump that has a hot reservoir temperature…

A: (a). Cop = 5.07  (b).  Q = 4.36*106 (c).  0.033

Q: A refrigerator requires 160 J of work and exhausts 650 J of heat per cycle. What is the…

A: Work = W = 160 JHeat exhausts = Q = 650 J

Q: Scaffold: Answer the problem below The following Table plots the location of a racing car that…

A: Given, t(s) x(m) 0 0 0.25 0.11 0.50 0.56 0.75 1.16 1 2.04 1.5 4.62 2 8.65 2.5…

Q: In one cycle of an engine, 1.66 kJ of energy is absorbed from a hot reservoir at 277°C, and 1.24 kJ…

A: Temperature of hot reservoir = 277 C  = 550 K temperature of cold reservoir = 27 C = 300 K

Q: heat pump operates on a Carnot cycle between the cool exterior of a house and the warm interior.…

A: This problem can be solved using the formula for coefficient of performance of a carnot heat pump.

Q: A heat engine takes in 400 J of energy from a hot reservoir and performs 21.0 J of work in each…

A: Given: The heat taken by the engine is 400 J. The work performed by the engine is 21 J.

Q: An engine absorbs 1.71 kJ from a hot reservoir at 277°C and expels 1.22 kJ to a cold reservoir at…

A:

Q: An ideal gas heat engine operates in a Carnot cycle between 27°C and 127°C. It absorbs 6 kcal at the…

A: Given: The temperature (T2) of the sink is 27°C. The temperature (T1) of the source is 127°C. The…

Q: A particular heat engine has a mechanical power output of 4.20 kW and an efficiency of 26.0%. The…

A: Given data: Power of the engine, P=4.20 kW=4.20×103 W Efficiency of the engine, η=26%=26100=0.26…