An insulated cylinder-plunger device with a constant load contains 2 L of saturated liquid water at a temperature of 80 °C . A paddle wheel agitates the water, contributing 500 kJ to the system, while for 10 min a current of 8 A passes through a 110 V resistor placed in the water. It is correct to state: I) Information is missing to calculate the moving boundary work. II) The final state is a vapor-liquid mixture at 47.42 kPa. III) In the final state, the volume is equal to 0.781 m3/kg IV) The sum between the electric work and the work of the paddlewheel is equal to hfg
An insulated cylinder-plunger device with a constant load contains 2 L of saturated liquid water at a temperature of 80 °C . A paddle wheel agitates the water, contributing 500 kJ to the system, while for 10 min a current of 8 A passes through a 110 V resistor placed in the water. It is correct to state: I) Information is missing to calculate the moving boundary work. II) The final state is a vapor-liquid mixture at 47.42 kPa. III) In the final state, the volume is equal to 0.781 m3/kg IV) The sum between the electric work and the work of the paddlewheel is equal to hfg
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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An insulated cylinder-plunger device with a constant load contains 2 L of saturated liquid water at a temperature of 80 °C . A paddle wheel agitates the water, contributing 500 kJ to the system, while for 10 min a current of 8 A passes through a 110 V resistor placed in the water. It is correct to state:
I) Information is missing to calculate the moving boundary work.
II) The final state is a vapor-liquid mixture at 47.42 kPa.
III) In the final state, the volume is equal to 0.781 m3/kg
IV) The sum between the electric work and the work of the paddlewheel is equal to hfg
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