Apiston cylinder device initially contains saturated liquid water at 175 kpa. water is heated with an electric heater of 8 amperes current for 45 minutes. a paddle wheel stirred the water with a work input of 400 kj. the process took place at constant pressure. the following properties are known: v=0.001057 m2/kg, hj=487.01 kj/kg. volume-=0.005 m2 x20.5, h2=1593.6 kj/kg determine the applied voltage in (volts)