1. An engine with an efficiency of 0.2 absorbs 485J of heat per cycle. (a) How much work does it perform per cycle? W= (b) How much heat, Q, does it discharge per cycle? Qc=
Q: A Carnot engine is operated between two energy tanks with temperatures of 450 K and 350 K. and they…
A: For Carnot engine: TH = 450 K TL = 350 K Heat received QH = 1000 J Find: a- how much energy the…
Q: Carnot engines can achieve the maximum theoretically possible efficiency for a heat engine.…
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Q: A refrigerator requires 10 J of work and exhausts 70 J of heat per cycle. What is the…
A: Given data :- Work done W = 10 J Heat exhausted Q = 70 J
Q: n moles of CH4, considered as an ideal gas, are taken through the following thermodynamic cycle: A…
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Q: A heat engine operates in a Carnot cycle between 70.0°C and 345°C. It absorbs 20,800 J of energy per…
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Q: 1. A heat engine is found to have an efficiency of 0.3. If it does 180 J of work per cycle, what are…
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Q: A thermal cycle has an efficiency equal to 45.0 % of that a Carnot engine that operates between the…
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Q: 1. A certain heat engine does 11 kJ of work and 10 kJ of heat transfer occurs to the environment in…
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Q: 1. If 2 kg of liquid water at 360 K are mixed adiabatically and at constant pressure with 3 kg…
A: m1=2 kg T1 =360Km2=3 kgT2 = 380 KFinial Temperature of the mixture.2×c×(360-T)…
Q: A diesel engine performs 2200 J of mechanical work and discards 4300 J of heat each cycle. Determine…
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Q: A Carnot engine extracts 200J of heat from a 600K hot reservoir every cycle. The cold reservoir…
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Q: 8. Suppose the 1,000 kJ is needed to raise the 12 kg of now gaseous nitrogen N, from boiling…
A: Given: E=1000 kJ Ti=-196+273= 77 K Tf=20+273=293 K
Q: A large block of copper initially at 23.0°C is placed in a vat of hot water (83.3°C). The first 1.40…
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Q: A Carnot engine draws heat energy from a hot temperature reservoir at 250oC and deposits heat energy…
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Q: A heat engine with an efficiency of 30% takes in 800 J of heat from the high-temperature reservoir…
A: Given: The efficiency of the heat engine is 30%. The heat input to the engine is 800 J.
Q: In every cycle of its operation, a Carnot engine takes in 640 J of heat from a reservoir at 380 K…
A: Given, heat taken from reservoir, Q = 640 J temperature of reservoir, TH = 380 K TC = 300 K
Q: 48. On a hot summer day, 4.00×10° Jof heat transfer into a parked car takes place, increasing its…
A: Given Heat transfer Q=4×106 J T1=35 T2=45
Q: My Vitamix blender can make hot water mechanically. The blender takes 32 oz of water at 25DegC and…
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Q: I. A Carnot refrigeration cycle absorbs heat at -12°C and reject it at 40°C. a.) Calculate the…
A: Since you have asked multiple sub-parts, only the first three sub-parts are solved for you. If you…
Q: 24.8 Figure 24.7 is the P-V diagram of a single cycle of a heat engine. All of the processes…
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- efficiency of a carnot engine is 50%. The temperature of the hot reservoir is kept constant. By what amount should the temperature of the cold reservoir be decreased so that efficiency becomes 60%. a) 1K b) 2K c) 30K2. Two bodies A and B with corstant total heat capacities Cp, and Cp, and different initial temperatures Tg ana Ta, exchange heat with each other under isobaric conditions. No heat is transferred to or from the surroundings and the temp. of both bodies are assumed uniform at al times and the process is irreversibile. a. Derive an expression for the total entropy change of the two Dodies as a function of temp. b. What is the equiliorium temp of the system?Problem 1: Otto cycle Prove directly (by calculating the heat taken in and the heat expelled) that an Otto engine using an ideal gas as the working substance has an efficiency of e = 1 –
- Question 18 During an isothermal process, 5.0 J of hat is removed from an ideal gas. What is the change in internal energy? O 10 J O cannot be determined from the given. O zero O 2.5 J O 5.0JA refridgerator consumes a certain amount of electrical energy to operate. In terms of the thermodynamic cycle of the refrigerator, this electrical energy is equal to: 1. the heat expelled into the room 2. the heat extracted from the food in the refrigerator 3. the sum of quantities in the other answers 4. the work done on the gasA heat engine operating between -10 degrees Celsius and 40 degrees Celsius achieves 50% of the ideal Carnot efficiency. If it takes in 100,000 J of heat in one heat cycle A. How much heat is exhausted in one cycle? B. How much work is done in one cycle? C. What was the entropy change of the high temperature reservoir? The low temperature reservoir? D. Was this cycle a reversible process?
- 2. A heat pump cycle whose coefficient of performance is 2.5 delivers energy by heat transfer to a dwelling at a rate of 20 kW. a. Determine the net power required to operate the heat pump, in kW. b. Evaluating electricity at 0.08 per kWh determine the cost of electricity in a month when the heat pump operates for 200 hours.A Carnot engine has a power output of 150 kW. The engine operates between two reservoirs at 20.0 °C and 500 °C. a) How much heat QH does the plant consume per second? b) What is the heat Q, released by the plant per second? c) What is the (Carnot) efficiency nc of this power plant? d) If there were irreversibilities in the power plant, but its power output were the same, how would this affect the heat released to the river per second? Explain.Q8
- 7. A refrigerator operating on the reversed Carnot cycle has a measured work input of 200 kW and heat rejection of 2000 kW to a heat reservoir at 27°C. Determine the cooling load supplied to the refrigerator, in kW, and the temperature of the heat source, in °C. show free-body diagramA91. A gas obeys the following equation of state: ap² T m³K bar mol P(vb) = RT + where a = -0.001 and b = 8 × 10-5 m³ mol Calculate the entropy change As when the gas changes from state 1 (600 K, 100 bar) to state J 2 (450 K, 20 bar). The ideal gas heat capacity for this process is Cp = 33.5 mol K