Milk is being pasteurized by a heat exchanger. The temperature of the heating water is 95C and its flow rate is 1500kg/h. The inlet and outlet temperature of milk recorded as 10C and 73C, respectively. And its flow rate is 500kg/h. For the control system applied to this pasteurization unit; a) Calculate K and values for this heating system. b) If the flow rate of heating water is increased to 1750kg/h at t=0, what will be the response equation of the output variable, y(t)= ? c) What will be outlet temperature of milk at 5. minute? ( Cp (water) and Cp (milk)=4.18 kJ/kg.K) Answers: The final answers of the questions are True as follow, please solve it step by step a) K=0.042=1 b) y(t)=10.5(1e(t)) c) 84.43d