Problem 3) [20 pts] After undergoing a continuous chemical reaction in a tubular reactor, a reactive organic liquid enters a "quenching" section of the tube immersed in 0C ice water (designed to stop the reaction, which remarkably neither absorbs nor releases any heat). As the reactive fluid enters this 2 -meter-long and 2 - cm-in-diameter ice water-immersed tube section, its temperature (TIF) and volumetric flow rate are 80C and 0.05L/s, respectively. Further, this liquid stream has a density (l) of 800kg/m3 and a specific heat capacity (C^Pl) of 2.0kJ/kgC, and it must leave this heat exchanger at an exit temperature (Tl,Out) of 20C or lower. Based on this information, please do the following: (a) [10pts] Develop the energy balance you would use to estimate the minimum overall heat transfer coefficient (U) requirement for the ice waterimmersed tube