3. 55gmol/s of HCL solution is fed to the evaporator in arder to increase its concentration from 20% to 45% (see fig.). If the solution enters the evaporitor at 25C and leaving at 150C. Assume the specifie heat of a 45% HCL solution is about 2.8kJ/kg.C. What is the heat transfer rate in the evaporator in kJ