A 3.8 t/hr NaOH solution is concentrated from 20% at 100C to 35% using a one pass falling film evaporator under 0.5 bar condition. The heat transfer area is 205 m. Determine the following: (1) (ii) (iii) Draw a schematic diagram illustrating the whole process. (5 marks) Heat consumption in kJ/hr. (12 marks) The average change in temperature (AT) if the overall heat transfer coefficient is 0.5 kW/m.K (3 marks) [20 MARKS]