8. A thin-walled double-pipe parallel-flow heat exchanger is used to heat a chemical whose specific heat is 1800 J/kg- C with hot water (Cp = 4180 J/kg C). The chemical enters at 20C at a rate of 3 kg/s, while the water enters at 110C at a rate of 2 kg/s. The heat transfer surface area of the heat exchanger is 7 m and the overall heat transfer coefficient is 1200 W/m. C. Determine the outlet temperatures of the chemical and the water. Chemical 20C 3 kg/s Hot water 110C 2 kg/s