. The heat transfer rate to the jacket of an agitated polymerization reactor is 7.4 kW/m2 when the polymerization temperature is 50OC and the water in the jacket is at 20OC. The reactor is made of stainless steel with a wall 12 mm thick, and there is a thin layer of polymer (k = 0.16 W/mK) left on the wall from previous runs. Thermal conductivity of the reactor = 16.3 W/mK

a) What is the temperature drop across the metal wall? b) How thick would the polymer deposit have to be to account for the rest of the temperature difference?