A well-insulated rigid tank contains 5 kg of a saturated liquid-vapour mixture of water at 100kPa.Initially.three-quarters of the mass is in the liquid phase.An electric resistor placed in the tank is connected to a 110V source and a current of 8 A flows through the resistor when the switch is turned on.Determine how long it will take to vaporize all the liquid in the tank.Also,show the process on a T-v diagram with respect to saturation lines.