Cold Water T The process shown in figure is a constant volume electric water heater. On a particular day, as the tank temperature reached the 80C mark, the heater broke down and stopped supplying heat. At this time, water was withdrawn from this 100 liter T; capacity tank at the rate of 10 liter/min; cold water automatically flowed in to the tank at precisely the same rate. This exercise went on exactly for 5 min., and the water withdrawal stopped. Hence, cold water also stopped flowing in. Develop an appropriate mathematical model for this process and show that it is reasonable to consider this as a first order process and by solving the resulting differential equation model, find the final tank temperature at the end of the 5-minute period. State all your assumptions. Hot Water Heater