I need the answer as soon as possible Q.2) An ekctric resistor placed in the well-insulated rigid tank is connected to a 110-Vsource and a current of 8 A flows through the resistor when the switch is turned on.Determine how long it will take to vaporize all the liquid in the tank. Initially the rigid tankcontains 5 kg of a saturated liquid-vapor mixture of water at 100 kPa and three-quarters of themass is in the liquid phase.

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Answered: Q.2) An ekctric resistor placed in the…

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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Consider a sealed can that is filled with 4.4 kg of water at 115 °C and P = 248 kPa. Now a leak develops, and the pressure in the can drops to the local atmospheric pressure of 100 kPa (Cp=4.23 kJ/kg.K). The vapor leaves the can as soon as it is formed. How much vapour will evapourate before the liquid water reaches its boiling temperature at atmospheric pressure. NB: water's enthalpy of vapourisation is roughly 2257 kJ/kg . a. 4.400 kg b. 0.120 kg c. 1.093 kg d. 0.030 kg e. 0.015 kg
This is for my thermodynamics review problems can you show the full solution... 7. Water vapor at 100 kPa and 150°C is contained in a rigid vessel. At what temperature will the vapor start to condense when the container is cooled slowly? How much heat will have to be removed per kilotram in this cooling process? Ans. 95.68°C, -81.4 kJ/kg
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A mixture (i.e., thermodynamic system) of 0.182 kg of helium (He) and 0.091 kg ofoxygen (O2) is compressed polytropically (PVn = const.) in a piston-cylinder devicefrom 101.352 kPa and 15.56 degree C to 413.69 kPa according to n = 1.4. Determine for theprocess: (a) the final temperature, (b) the work done, and (c) the heat energy.Clearly mention whether the work is done on or by the mixture, and whether the heatis supplied to or rejected by the mixture to the surroundings.Take the specific heat capacity at constant volume, cv for He = 3.119 kJ/(kg·K) andfor O2 = 0.659 kJ/(kg·K), and the value of gas constant R for He = 2.0769 kJ/(kg·K)and for O2 = 0.2598 kJ/(kg·K).Draw the schematic of piston-cylinder device and display the process on a hypothetical indicator diagram for the process.
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Moist air at 30oC and 50% relative humidity is cooled to 10oC. If the air has a volumetric flow rate of 20m3/min, and condensate water at 10oC is collected, draw the cycle on the attached chart and determine: c) The rate of heat required to cool the air, in KW.

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