. A system undergoes a cyclic process as shown in the following P-V diagram. Here the cycle consists of two adiabatic processes and two isothermal processes a. Determine the price of the state variable at positions A, B, C and D. b. Determine the heat and work associated with the AB, BC, CD and DA processes c. Determine the net effort generated by the system, the heat entering the system and the efficiency of the cycle system above

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Q: 2.Find the minimum work done per Kg of air in a cycle according to the following processes: a.…

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Q: As shown in the figure below, a reversible power cycle receives energy QH by heat transfer from a…

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Q: A steam power plant operates essentially under steady state conditions in which steam is at a…

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Q: The following processes occur in a reversible thermodynamic cycle: 1-2: 0.2 kg heating at constant…

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Q: Refrigerant 134a at p₁ = 30 lb/in², T₁ = 40°F enters a compressor operating at steady state with a…

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Q: Two pounds mass of water in a piston-cylinder assembly, initially a saturated liquid at 25 lbf/in²,…

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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: A system executes a cycle during which there are three heat transfer Q12 = 200 kJ, Q23 = - 25 kJ,…

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Q: n ice maker operating at steady state makes ice from liquid water at 32°F. Assume that 144 Btu/lb of…

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Q: 0.08 bar. The turbine develops 9000 lings occurs at a rate of 590 kW. Negl xit. rmine the exit…

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Q: (1.3) Suppose a process increases Gibbs free energy of a system coupled to both a heat bath and…

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Q: The first law of thermodynamics discusses a. Thermal equilibrium b. Energy conservation c. Direction…

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Q: In a solid sphere, a heat flow is produced by a source that generates energy at a rate of S W/m3 .…

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Q: 2 kg of water vapor in a piston-cylinder assembly expands at a constant pressure of 300 kPa (3.0…

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Q: Air occupies a 0.5-m' tank. It starts at a pressure of 5 bar and a temperature of 300 K. Energy…

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Q: The figure belows shows three components of an air-conditioning system, where T3 = 105°F and m3 =…

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Q: Two closed thermodynamic cycles are illustrated in the figure.(Figure 1) The ideal gas sample can be…

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Q: The following processes occur in a reversible thermodynamic cycle: 1-2: 0.2 kg heating at constant…

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Q: Steam enters a turbine with a pressure of 30 bar, a temperature of 440 C, and velocity of 160 m/s.…

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Q: (1-2); constant pressure (2-3); and polytropic where n = 1.6, (3-1). Given that p1 = 100 kPa, T1 =…

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Q: A particular substance undergoes a mechanically reversible process, expanding m an initial state of…

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Q: 1 kg of a fluid expands reversibly according to a linear law from 45 bar to 1.6 bar the initial and…

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Q: gas inside a piston-cylinder assembly undergoes a refrigeration cycle consisting of these three…

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Q: Refrigerant R-134a contained within a piston-cylinder device undergoes isobaric heating processes…

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Q: Determine the work,

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Q: A closed system consists of gas of 2 kg initially in state 1 with p1 = 4bar and specific volume 1m…

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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.