hi pls help me to give the correct answer as my previous asked, they only copy paste the answer for task 1.

topic : Design of a multi etfect evaporation system

Feed: 6 kg/s of 14 wt.% caustic soda solution at 75 C

Production: 47 wt.% caustic soda solution at 39 C

Utility: Saturated steam at 150 C

Task-2: (60-marks) Calculate (a) operating temperature in all three effects and (b) heat transfer area and utility (steam) required in each effect. Your calculations must satisfy the condition that the heat transfer area in each effect should be equal (with accepted variation of +10%). Consider overall heat transfer coefficient in each effect in a range of 1200-3000 W/mK. Overall heat transfer coefficient (U) in the first effect = 3000 W/mK, U; = 2000 W/mK, and U. = 1250 W/mK Also consider boiling point elevation and heat of solution in your calculations