(5) An insulated piston-cylinder device contains 15 L of saturated liquid water at a constant pressure of 950 kPa. Water is stirred by a paddle wheel while a current of 15 A flows for 28 min through a resistor placed in the water. If 64% of the liquid is evaporated during this constant pressure process and the paddle-wheel work amounts to 600 kJ, determine the voltage of the source. Also, show the process on a P-v diagram with respect to saturation lines. H,O P= constant W. Wsh

(5) An insulated piston-cylinder device contains 15 L of saturated liquid water at a constant pressure of 950 kPa. Water is stirred by a paddle wheel while a current of 15 A flows for 28 min through a resistor placed in the water. If 64% of the liquid is evaporated during this constant pressure process and the paddle-wheel work amounts to 600 kJ, determine the voltage of the source. Also, show the process on a P-v diagram with respect to saturation lines. H,O P= constant W. Wsh

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

See similar textbooks

Similar questions

4-31E A 20 ft³ rigid tank initially contains saturated refrigerant-134a vapor at 160 psia. As a result of heat transfer from the refrigerant, the pressure drops to 50 psia. Show the process on a P-v diagram with respect to saturation lines, and determine (a) the final temperature, (b) the amount of refrigerant that has condensed, and (c) the heat transfer.
3) In a fixed volume container with a volume of 0.1 m^3, initially there is saturated water vapor at 130°C. The vessel is connected to a pipe through which steam flows through a valve at 2 MPa pressure and 350°C temperature. Then the valve opens and steam enters the container. Meanwhile, the temperature of the steam in the container remains constant at 130°C due to the heat transfer to the environment. When it is observed that 3/4 of the water in the container covers the liquid phase by mass, the valve is closed. Calculate a) the final pressure in the container, b) the mass of steam entering the container, c) the heat transfer to the environment.
Answer it correctly please. Explain . I will rate accordingly with multiple votes.
I am stuck on this question, please explain. Thank you!
A 100L tank initially contains water at 100kPa and a quality of 1%. Heat is transferred to the water, raising the temperature and pressure. At a pressure of 3 MPa, a safety valve opens and saturated vapor at 3 MPa flows out. The process continues, maintaining 3 MPa inside until the quality in the tank is 90% and then stops. Determine the total mass of water that flowed out and the total heat transfer.
A and B containers (fixed volume) are connected together by a valve. Tank A contains 400 kPa and 0.3 m3 refrigerant 134a at 60% dryness. Tank B contains 0.5 m3 of refrigerant 134a at 240 kPa pressure and 100 oC temperature. Then the valve is opened and the system reaches 280 kPa equilibrium pressure. Calculate the final temperature.
Question 1 (a) In the thermodynamic laboratory, student Ali prepared a piston-cylinder device which contains refrigerant-134a at 1000 kPa and 50°C. The mass of the refrigerant is 6 kg. The next step of the experiment involves cooling the refrigerant at constant pressure until its state become liquid at 24°C. Show the process on T-v diagram and determine the heat loss from the system.
A piston-cylinder device contains satuated water vapor with a constant pressure. The mass and the pressure are listed in the table below. The water is heated by a resistance heater (see the picture below) within the cylinder. The heat supplied by the heater is given in the table below. The cylinder is insulated so there is not heat loss. (a) Determine the enthalpy per unit mass after the water vapor received heat. (b) Determine the temparature after the water vaopr received heat. Parameter Pressure Mass of water Heat supplied by the heater Unit kPa g KJ Value 300 26 7.1 heater
2) Two glass bulbs, one on the left with a volume of 2 liters and the other on the right with avolume of 6 liters, are connected to one another by a thin tube that is initially closed by astopcock. The bulb on the left has 0.1 moles of ideal gas, and the bulb on the right isevacuated. The system is in thermal equilibrium with the surroundings at 300K. When thestopcock is opened, the gas flows out to fill both bulbs. Calculate A for this process. If wewere to insert a propeller to extract work as the gas flows from left to right, what is themaximum amount of work that we could possibly extract?
0. Water is boiled at 1 x 105 Pa pressure in a coffee maker equipped with an immersion- type electric heating element. The coffee maker initially contains 1 kg of water. Once boiling started, it is observed that half of the water in the coffee maker evaporated in 18 minutes. If the heat loss from the coffee maker is negligible, the power rating of the heating element is
6-Five kg of steam at pressure of 4.9 bar is produced from water at 20C. Determine the amount of heat supplied if the steam is 0.9 dry. (12263KJ)
The numbe is 8