0.8-kg of saturated liquid R-134a with an initial temperature of −5°C is contained in a we...

0.8-kg of saturated liquid R-134a with an initial temperature of −5°C is contained in a well-insulated, weighted piston-cylinder device. This device contains an electrical resistor, as shown in Fig. P4-45, to which 10 volts are applied causing a current of 2 amperes to flow through the resistor. Determine the time required for the refrigerant to be converted to a saturated vapor, and the final temperature.