100 L/min of milk at 25 C are added to a tank containing 2000 L of...

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100 L/min of milk at 25 °C are added to a tank containing 2000 L of milk at 35 °C. At the same time, 100 L/min of milk are extracted. A heating coil provides 2000 kcal/min. • If the tank is perfectly agitated, calculate: . A) The temperature of the milk extracted after 20 min • B) The time necessary for the milk to be extracted at 40 ºC • C) The temperature at which the milk will be stable in the tank • DATA: • Density of milk, \rho = 1030 kg/m3 • Specific heat of milk, Cp = 1 kcal/kg- ºc 100 L/min of milk at 25 °C are added to a tank containing 2000 L of milk at 35 °C. At the same time, 100 L/min of milk are extracted. A heating coil provides 2000 kcal/min. • If the tank is perfectly agitated, calculate: . A) The temperature of the milk extracted after 20 min • B) The time necessary for the milk to be extracted at 40 ºC • C) The temperature at which the milk will be stable in the tank • DATA: • Density of milk, \rho = 1030 kg/m3 • Specific heat of milk, Cp = 1 kcal/kg- ºc

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