Water is heated in a closed container with rigid walls that is a perfect cube (1 m x 1 m x 1m). The initial volume of the water (liquid + vapor) is 1 m'. The initial temperature ofthe water is 100 °C and it has a quality of 0.3. It is heated until it reaches a final pressureof 700 kPa.a. Sketch the process on the P V diagram.b. What is the work done by the water during this heating process in kJ?c. What is the final temperature of the water?d. What is the heat required in order for this process to occur in kJ?PV

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Answered: Water is heated in a closed container…

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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Solve these two maths showing the processes too in a well defined way.
(b) A frictionless piston-cylinder device as shown in Fig. Qlb contains water at 300 kPa and the water is heated at constant pressure from saturated liquid to saturated vapor. Then, the heating process is continued in an isobaric manner until its specific volume reaches the value of 0.7 m'/kg. Water Heat Figure Qlb i) What is the initial temperature of water in the cylinder? ii) What is the final temperature of water in the cylinder? iii) Calculate the total boundary work during the processes, kJ/kg. iv) Calculate the total amount of heat transferred during the processes, kJ/kg. v) Sketch both processes on a T – v diagram with respect to saturation lines.
A frictionless piston-cylinder device encloses 0.226 kg of saturated water-vapour mixture which is initially 10% by mass in liquid. The initial pressure is 1.035 MPa. The fluid is now heated until it all becomes saturated vapour. a. Find the work done during the process. Now, suppose that there is a stop in the cylinder that limits the piston to stop at the top when the volume is 0.0424 m'. b. Find the quality of the mixture when the piston just reached the stop, i.e. when the fluid volume is at 0.0424 m³.
A Piston-Cylinder arrangement initially contains 3 kg of water as saturated liquid at 200 kPa pressure. Then, heat transfer to water, some of the water evaporates and the piston rises. When the volume is 60 liters, the piston touches the stoppers. Heating process continues until the pressure is twice the initial pressure. Plot the state change on the P-v diagram showing the saturation curves. Also, A) Finally, find the mass of the system in liquid phase. B) Find the final temperature. C) Calculate the total work done and heat transfer during the process.
Q3: You have an ideal gas in an insulated container. You compress it from a pressure of 40 × 105 Pa to 20 × 105 Pa, while increasing the volume from 10 to 20 m3. What is the work you done by the gas a- 10 J b- 300 J c- 500 J d- 880 J
pls correct the given this is my last attempt
A frictionless piston-cylinder device as shown in Fig. Qlb contains water at 400 kPa and the water is heated at constant pressure from saturated liquid to saturated vapor. Then, the heating process is continued in an isobaric manner until its specific volume reaches the value of 0.5 mkg. Water Heat Figure Qlb i) What is the initial temperature of water in the cylinder? ii) What is the final temperature of water in the cylinder? iii) Calculate the total boundary work đuring the processes, kJ/kg. iv) Calculate the total amount of heat transferred during the processes, kJ/kg. v) Sketch both processes on a T – v diagram with respect to saturation lines.
.A kilogram of Argon gas( MW= 40 kg/kmol, k=5/3) is in a piston cylinder set-up. Initially, it has pressure of 30kPa and volume of 0.2m3 and expanded to 20 kPa due to heat transfer. If the process is said to be isovolumic, find initial and final temperatures.
A piston and cylinder device contains 0.15 kg of water at 25◦C (state 1). As shown in the figure, the piston weighs 500 N and has a cross-sectional area of 0.01 m2. Atmospheric pressure is 100 kPa. Heat is transferred to the cylinder from a reservoir at 200◦C, raising the piston. When the piston touches the stops, the volume inside the cylinder is Vmax= 0.165 m^3 (state 2). Heat continues to be transferred until the control mass reaches the boundary temperature (state 3). Determine: a) The initial pressure of the water (kPa) b) The temperature (Celsius) when the piston hits the stops c) The total work (kJ) d) The total heat transfer (kJ) e) The total entropy production for the entire process (kJ/K)
Q2// The initial state of air is 120 KPa and 320 K with volume 0.11 m3 which is compressed isothermally until reaching its half volume and after that it is compressed at constant pressure until reaching 4 volume of the initial volume. Find the pressure, the volume and temperature in each state.
need the correct ans
I cant figure out what i have done wrong

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