Example 3.15: A fluid at 4.15 bar is expanded reversibly according to a law PV = constant to a pressure of 1.15 bar until it has a specific %3D volume of 0.12 m3/kg. It is then cooled reversibly at a constant pressure, then is cooled at constant volume until the pressure is 0.62 bar; and is then allowed to compress reversibly according to a law PVn = constant back to the initial conditions. The work done in the constant pressure is 0.525 kJ, and the mass of fluid present is 0.22 kg. Calculate the value of (n) in the fourth process, the net-work of the cycle and sketch the cycle on a P-V diagram.Answer: n=1.3182, network 0.9076 kJ

Q: One kilogram on a diatomic ideal gas undergoes the following four step process starting at Point A…

A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: Krypton in a closed system is compressed adiabatically from 94 K and 1 bar to a final pressure of 24…

A: Given: initial temperature→T1=94 K Initial pressure→P1=1 bar Final pressure→P2=24 bar Krypton is…

Q: Argon gas flows through a well-insulated nozzle at steady state. The temperature and velocity at the…

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Q: A 60-lb aluminum bar, initially at T₂ = 190°F, is placed in a tank together with 190 lb of liquid…

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Q: 434 An air-conditioning system is shown in Fig. P4.54 in which air flows over tubes carrying…

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Q: Two kilograms of gas with R = 0.218 kJ/(kg-K) undergoes a process and results to the following…

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Q: Q1/ An ideal gas, Cp=R and Cv=R, is changed from p₁=1 bar and v₁=10m³ to =10 bar and v₂ = 1m³ by the…

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Q: Q1/ An ideal gas, Cp-R and Cv=R, is changed from p₁=1 bar and v₁=10m³ to P2 = 10 bar and v₂ = 1m³ by…

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Q: One kilogram on a monoatomic ideal gas undergoes the following four step process starting at Point A…

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Q: Argon gas flows through a well-insulated nozzle at steady state. The temperature and velocity at the…

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Q: al gas expands adiabatically from a volume of 2.5 x 10- m³ to 3.0 x 10- m. If the initial p

A: given:V1=2.5×10-3m3V2=3×10-3m3p1=5×105paT1=295K

Q: 4.55 As shown in Fig. P4.55, a steam turbine at steady state is operated at part load by throttling…

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Q: Solve par d,e,f

A: d) 0.0455 kg/se) Waste heat transferred 8.3674 kw    Compressor work input 2.9687 kW…

Q: At the end explain the relationships between system constants R, C,, and Cp when a certain perfect…

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Q: Air expands in a piston-cylinder assembly from P1 = 300 kPa and V1 = 0.1 m³ to a final state where…

A: Given Data  P1=300 Kpa V1=0.1m3 V2=0.2m3 Relationship between pressure and volume is given by Pvn=…

Q: Example 2: A system consists of N, in a piston-cylinder assembly, initially at P, = 20 psi, and…

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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.