Kinetifinal, in MPa, (b) the work, in kJ, and (c) the heattransfer, in kJ. PS to 103.129 As shown in Fig. P3.129, one side of a rigid, insulatedcontainer initially holds 2 m³ of air at 27°C, 0.3 MPa. The airis separated by a thin membrane from an evacuated volumeof 3 m³. Owing to the pressure of the air, the membranestretches and eventually bursts, allowing the air to occupythe full volume. Assuming the ideal gas model for the air,determine (a) the mass of the air, in kg, (b) the finaltemperature of the air, in K, and (c) the final pressure of theair, in MPa.Jasmவஸ்

Answered: Image /qna-images/answer/b2213599-c6c3-4265-9bf7-44d1e7db6cf0.jpg

Answered: Kineti final , in MPa, (b) the work, in…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Refrigerant 134a undergoes a poly tropic process in a Piston- cylinder assembly from an initial state of saturale'a vapor at 2 bår to a final State of 12 bar and 80 °C. if the mass of the refrigerant is akg, Cal culate the work for the process 'in kJ using 's Signifigant Agures
3.134 One kilogram of air in a piston-cylinder assembly undergoes two processes in series from an initial state where P 0.5 MPa, T 227°C: Process 1-2: Constant-te mperature expansion until the vol- ume is twice the initial volume. Process 2-3: Constant-volume heating until the pressure is again 0.5 MPa. Sketch the two processes in series on a p-v diagram. Assum- ing ideal gas behavior, determine (a) the pressure at state 2. in MPa, (b) the temperature at state 3, in °C, and for each of the processes (c) the work and heat transfer, each in kJ.
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3. One pound of an ideal gas undergoes an isentropic process from 95.3 psig and a volume of 0.9ft to a final volume of 3 ft°. If c, = 0.124 and c, = .063 Btu/lb.R what are (a) T2, (b) P2 (c)AH and (d) W. (Basis 1lbm)
3.51 WP Referring to Fig. P3.51, water contained in a piston-cylinder assembly, initially at 1.5 bar and a quality of 20%, is heated at con- stant pressure until the piston hits the stops. Heating then continues until the water is saturated vapor. Show the processes of the water in series on a sketch of the T-v diagram. For the overall process of the water, evaluate the work and heat transfer, each in kJ/kg. Kinetic and potential effects are negligible.
None of the above A piston cylinder contains 0.72 kg of air initially at 450 kPa and 225 °C, now the air expands in a process such that the pressure is linearly decreasing with volume to a final state of 100 kPa and 25 C Determine the amount of work during this process (kJ). Select one, Oa. 75.89 Ob.106 45 O0.122 99 e Noneof the above NEXT PAGE PAGE GET SOCIAL INFO CONTACT US 40 ENG
Q3. We can determine the amount of heat transfer for any system undergoing any process using a thermodynamic analysis alone. Why do we need heat transfer as a distinct subject to deal about heat transfer?
3.25 WP As shown in Fig. P3.25, Refrigerant 134a is contained in a piston-cylinder assembly, initially as saturated vapor. The refrigerant is slowly heated until its temperature is 160°C. Dur- ing the process, the piston moves smoothly in the cylinder. For the refrigerant, evaluate the work, in kJ/kg. Patm = 1 bar Piston Refrigerant 134a m FIGURE P3.25 Weight=471.1 N D = 0.02 m Initial: Saturated vapor Final: T₂ = 160°C
3.52 WP A piston-cylinder assembly contains 1kg of water, ini- tially at 700 kPa in series: a constant-pressure process followed by a constant-volume process. At the end of the constant-volume process, the temperature is 150°C and the water is a two-phase liquid-vapor mixture with a quality of 60%. Neglect kinetic and potential energy effects. and 200°C. The water undergoes two processes a. Sketch T-v and p-v diagrams showing the key states and the processes. b. Determine the work and heat transfer for each process, all in Btu.
An ideal gas of mass I kg is enclosed in rigid insulated container of volume 1 m' (C, =1000 J/kgK, C 800 J/kgK). A stirring paddle attached in system rotates 1000 rotation with constant rpm has torque 100 N-m, then the final temperature (in K) of gas is
Q2.3 Solar houses are designed to retain the heat absorbed during the day so that the stored hear can be released during the night. A botanist produces steam at 100 during the day and then allows the steam to cool to 0 °C and freeze during the night. How many kilograms of water are needed to store 200 kJ of energy for the process? (Use the laten heat of vaporization of water L. = 22.6 × 105 3/ Kg, the laten heat of fusion of water L₁= 33.5 x 104 J/Kg, and the specific heat capacity of water c = 4186 J/kg. C. Hint: you need to use both the formula of the heat Q = mcVT and Q = mL)
Please solve using steam tables don't use gas laws.

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