1. What is the efficiency of a Carnot engine working between 200 C and 446C? Suggest two ways in which you can decrease the efficiency of this engine. For each of the suggestions, you just made, find the temperatures of the hot reservoir and the cold reservoir to reduce the efficiency to 20%.

Q: Q1(a) State the Second Law of Thermodynamics and write its mathematical equation. (b) (c) The Carnot…

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Q: Carnot engines can achieve the maximum theoretically possible efficiency for a heat engine.…

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Q: A Carnot engine operating between Temperature T1=400K and T2=300K. Calculate its Efficiency.

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Q: A Carnot engine operates between reservoirs at 625 and 315 K. If the engine absorbs 115J per cycle…

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Q: The hot and cold reservoirs of a Carnot engine are 323°C and 66.7°C respectively. The temperature of…

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Q: To improve the efficiency of a Carnot engine, you can increase the difference in temperature between…

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Q: .A Carnot engine has a power output of 200 kW. The engine operates between two reservoirs at 20°C…

A: Given: The output power of the Carnot engine is 200 kW. The temperature of the cold reservoir is 20…

Q: To improve the efficiency of a Carnot engine, you can increase the difference in temperature between…

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Q: A Carnot engine operating between Temperature T1=900K and T2=200K. Calculate its Efficiency.

A: We need to calculate the efficiency of the given Carnot engine.

Q: Consider mixing some of the ice water with the hot water and vice versa so that the two reservoirs…

A: The process of mixing cold water with hot water and vice versa is irreversible.Entropy formation…

Q: 1.75 kg of carbon dioxide sublimate from solid dry ice to a gas at a pressure of 100 kPa and a…

A: Given mass of carbon dioxide m=1.75 kgTemperature T=194.7 KLatent heat of sublimation L=5.77×105…

Q: In each cycle of a Carnot engine, 96 J of heat is absorbed from the high-temperature reservoir and…

A: The amount of hear energy absorbed by the high-temperature  reservoir is QH=96 J. The amount of heat…

Q: 50. A monatomic ideal gas undergoes the reversible cyclic process (ABCA) shown in the PV diagram.…

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Q: An ice-making machine operates in a Carnot cycle. It takes heat from water at 270 K and rejects heat…

A: Given: Heat extracted from cold reservoir per cycle is given; 27. Thermal efficiency of this…

Q: A. The following diagram represents a reversible carnot cycle of 1mol of an ideal gas (Cv = 1.5R).…

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Q: A gasoline engine has a compression ratio of 8.00 and uses a gas for which y = 1.40. (a) What is the…

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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: 11. An ideal Carnot engine operates between 227 °C 400 J. The work of the engine is: 320 J 200 J 267…

A: Given data, Sink temperature Tsink=270 C.=27+273=300 K. Source temperature Tsource=2270…

Q: 1. Which of the following ERM diagram represents a refrigerator? A. в. с. D. TH TC Tc TH QH Qc Qc QH…

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Q: 4. Consider a heat engine comprising two isochores and two isobars, as in the diagram below. Suppose…

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Q: Prove that the "cycle" consisting of only two adiabatic steps (reversible expansion and then…

A: To prove that the "cycle" consisting of only two adiabatic steps (reversible expansion and then…

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: 4. Consider a heat engine comprising two isochores and two isobars, as in the diagram below. Suppose…

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Q: n = 2.19 mol of Hydrogen gas is initially at T = 342 K temperature and pi = 1.68×105 Pa pressure.…

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Q: A Carnot heat pump operates with an 2.5 between a hot efficiency n reservoir at temperature T₁ and a…

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Q: Two objects which is the B1 (T = 40 C) and B2 (T = 18 C), has experienced entropy changes of 6.4 x…

A: The change in entropy of an object at a particular temperature is given by the equation dS=dQTdS is…

Q: 2. Two bodies A ana B with constont totai heat capacities Cp, and Cp, and aifferent initial…

A: Given data, Initial temperature of A = TAo Initial temperature of B = TBo Heat capacity of A = CPA…

Q: To improve the efficiency of a Carnot engine, you can increase the difference in temperature between…

A: Initial case When not increase in temperature difference i,e' Temperature of hot reservoir TH=871.2…

Q: In one cycle a heat engine absorbs 520 J from a high-temperature reservoir and expels 310 J to a…

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Q: A Carnot engine has an efficiency ecarnot= 0.600. The temp. of the hot reservoir is 875 K. part a)…

A: Given:Carnot efficiency, ecarnot = 0.600Temperature of the hot reservoir, TH = 875 KHeat transferred…

Q: A thermal machine operates between two reservoirs at T2 = 600 K and T1 = 350 K. It receives 1.00 kJ…

A: Given, The temperature of the hot reservoir, T2=600 K The temperature of the hot reservoir, T1=350 K…

Q: The 2nd Law of Thermodynamics claims that the most efficient Carnot engine is achieved with the…

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Q: A thermal engine absorbs 1500 J of heat from a gas at a temperature of 250°K and discards 1200 J of…

A: a)We know that work done is given as Qin -Qout hence work done = 1500 J -1200 J =300 J b)  Thermal…

Q: A Carnot device operates between a cold reservoir of temperature -95'C and a hot reservoir of…

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Q: 1. A certain gasoline engine has an efficiency of 31%. What would the hot reservoir temperature be…

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Q: P OOOOOO P₂ 2 1 + Q23=O P₁ V₁ V3 The closed cycle for a heat engine that uses a diatomic gas…

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Q: power radiated

A: The statement that (a) no heat engine can be more efficient than a Carnot engine working between the…

Q: 1. One mole of an ideal gas expands isothermally at T=20°C from 1.2 m³ to 2.2 m³. The gas constant…

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Q: A heat engine consists of the cycle shown for 3 moles of an ideal 2 2p monatomic gas. It starts at…

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Q: A heat engine absorbs 100 J of heat from high temperature reservoir at 1727 Celsius and exhausts…

A: Using concept  of Carnot engine for maximum efficiency we get

Q: A Carnot engine requires 40kJ/s from the hot source. The engine produces 20kW of power and the…

A: Please see the answer below.

Q: A heat engine provides a net power output of 14 kW and has an efficiency of 23 %. The engine rejects…

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Q: 6. A heat engine is operating on a Carnot cycle and has a thermal efficiency of 55 percent. The…

A: From the question, it is given that- Efficiency of Carnot cycle: η = 55% = 0.55 Temperature of lake:…

First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.