A 0.1 mole% caustic soda (NaOH)solutlon is to be concentrated In a continuous evaporator…. 1 answer below »

A 0.1 mole% caustic soda (NaOH)solution is to be concentrated In a continuous evaporator. The solution enters the unit at 25°C at a rate of iso mol/min and is concentrated to 5 mol% at 5o*C. Hot dry air at zed:PCand 1.1 bar absolute is bubbled through the evaporator and leaves saturated with water at 5We and atm. Calculate the required volumetric flow rate of the entering air and the rate at which heat must be transferred to or from the unit. Assume that the heat capacity per unit mass of all liquid solutions is that of pure liquid water. nIM mol/min

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