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Q: A piston-cylinder assembly contains water that undergoes a series of processes. Process 1-->2:…

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Q: Qout = 45 kJ %3D A closed, rigid tank whose volume is 2 m contains 4.65 kg of air with the initial…

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Q: A monatomic ideal gas initially fills a V0 = 0.45 m3 container at P0 = 85 kPa. The gas undergoes an…

A: Given, Initial volume, V1=0.45 m3 Final volume, V2=1.4 m3 Initial pressure, P1=85 kPa=85000 Pa

Q: One pound of an ideal gas undergoes an isentropic process from 95.3 psig and a volume of 0.9ft3 to a…

A: The process which is carried out reversibly and adiabatically is termed as isentropic process. This…

Q: The temperature of a 500 gram closed system was 10 C. By an electric heater, Energy of 2000 calories…

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Q: Air (R-0.287 kJ/kg.K, c=1.005 kJ/kg.K) is contained in a piston cylinder device, it expands first…

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Q: Rank the following thermodynamic process by the work done by the system. (Highest positive should be…

A: Given 1. Assume v2>v1 and p1>p2>p3

Q: Air is polytropically compressed with n=1.3. The work required is 190 kJ. Determine: a. The change…

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Q: Consider an air conditioning system which requires periodic air renewal. Therefore, fresh air must…

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Q: Q3// 500 litre of air is compressed in a cylinder fitted with a frictionless piston from 150 KPa and…

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Q: An ideal gas first undergoes an adiabatic expansion, and then undergoes an isothermal compression…

A: Given, An ideal is first expanded adiabatically and then undergoes an isothermal compression. The…

Q: A tank of compressed air is at 40°C and 10 atm. 1 third of the gas is removed for inflating a car…

A: Dear student,                    According to the guidelines I am allowed to answer only three…

Q: Refrigerant 134a expands in a piston-cylinder assembly from p₁ = 160 lb/in2 and T₁ = 140°F to p2 =…

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Q: 14. Air is contained in a piston - cylinder arrangement. The following data were gathered: P₁= 700…

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Q: Analyse an industrial thermodynamic system (refrigeration systems) in terms of work done, from first…

A: Analyzing an industrial thermodynamic system such as a refrigeration system in terms of work done…

Q: In a piston subjected to a constant temperature T=125°C, there are 20 grams of water with a quality…

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Q: Air with a specific temperature of 37 kj/kg and a specific volume of 0.84 m³/kg passing through a…

A: Air conditioning: It is process in which air gets heated or cooled to maintain its properties to…

Q: t=270°C s= 6.5 kJ/kg-K What is the state of the pure substance?

A: It is not necessary for a pure material to consist of only one element or compound. As long as the…

Q: In a fixed volume, 0.3 m³ container, initially there is refrigerant R-134a at 6 °C. Initially, 60%…

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Q: Air expansion at constant pressure and produced work 5 KJ , if Cp 1.005 KJ / kg.K,R = 0.287 KJ /…

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Q: Q2 (a) A polytropic process is defined as PV" =C , where n is polytropic index and C is a constant.…

A: Drive the equation for the boundary work for the polytropic process

Q: At the inlet of a steam turbine, the pressure and the temperature of the steam are P1 = 1 MPa and T1…

A: Given, P1=1 MPaT1=300 0C P2=7.5 kPax2=0.9

Q: Air enters the cylinder of a 4-stroke gasoline engine at 33°C and 101.2 kPa. Engine clearance is…

A: Given data, P1 = 101.2 kPa T1 = 33°C =306K Vc =10.5% of V Q input  = 2600 kJ/kg

Q: Q6: Which of the following is not a property of the system ? * O (a) Temperature O (b) Pressure O…

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Q: For an ideal gas, the decrease in internal energy of 1.4 kgm is -343 kJ when the volume increases…

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Q: How much work is done by the gas if the ratio between its specific heat in constant volume and the…

A: Write the given data. Pinitial=6 PaVinitial=0.01 m3Pfinal=2 PaVfinal=0.04 m3cVR=1.5

Q: 4. Air is compressed polytropically from 101 kPa and 23°C and delivered to a tank at 1500 kPa and…

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Q: gas undergoes isobaric expansion at 0.05 bar from 0.1 m 3 to 1.0m 3 when 2.0 KiloJoules of heat is…

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Q: A stationary insulated rigid tank contains 1kg of an ideal gas with Cy = 0.7 kJ/KgK and Cp = 1…

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.