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An insulated piston-cylinder device shown in figure below initially contains 1.8-kg saturated liquid water at 120oC. Now an electric resistor placed in the tank is


An insulated piston-cylinder device shown in figure below initially contains 1.8-kg saturated liquid water at 120oC. Now an electric resistor placed in the tank is turned on for 10 min until the volume quadruples. Calculate  
a) the volume of the tank,
b) the final temperature, and
c) the electrical power rating of the resistor.


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