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Question: need help with this thermo 2 problem...

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Need help with this thermo 2 problem
1 Thermo 1 Review Help Save & Cl A hot-water stream at 80°C enters a mixing chamber with a mass flow rate of 0.54 kg/s where it is mixed with a stream of cold water at 20°C. If it is desired that the mixture leave the chamber at 42°C, determine the mass flow rate of the cold-water stream. Assume all the streams are at a pressure of 250 kPa. The enthalpies are 335.02 kJlkg, 83.915 kJ/kg, and 175.90 kJ/kg. The saturation temperature at a pressure of 250 kPa is 127.41°C The mass flow rate is kg/s. Prev 5of 9 Next >
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