An insulated piston-cylinder device contains 5 L of saturated liquid water at a constant pressure of 150 kPa. An electric resistance heater inside the cylinder is now turned on and 2200 kJ of energy is transferred to the system. a) Sketch a schematic diagram of the system and label all given information. b) Determine mass of the water, kg. c) Determine final enthalpy of the water, kJ/kg.

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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1. An insulated piston-cylinder device contains 5 L of saturated liquid water at a
constant pressure of 150 kPa. An electric resistance heater inside the cylinder is
now turned on and 2200 kJ of energy is transferred to the system.
a) Sketch a schematic diagram of the system and label all given information.
b) Determine mass of the water, kg.
c) Determine final enthalpy of the water, kJ/kg.
d) Develop entropy balance of this process and evaluate whether it is irreversible,
internally reversible or impossible.
e) Determine the entropy change of the water during this process, kJ/K.
Transcribed Image Text:1. An insulated piston-cylinder device contains 5 L of saturated liquid water at a constant pressure of 150 kPa. An electric resistance heater inside the cylinder is now turned on and 2200 kJ of energy is transferred to the system. a) Sketch a schematic diagram of the system and label all given information. b) Determine mass of the water, kg. c) Determine final enthalpy of the water, kJ/kg. d) Develop entropy balance of this process and evaluate whether it is irreversible, internally reversible or impossible. e) Determine the entropy change of the water during this process, kJ/K.
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