(a)Water flows through a tube at a rate of 7.5 kg/min while heat is added to it at a rate of 4.5 kW. If water entered at 20 degrees celcius, determine the exit temperature. Assume the pressure remains constant at 1 atm throughout.
(b) Repeat the exercise but assume a heat addition rate of 45 kW instead. What is the exit state of the water.