Compute the heat required to vaporize 1 lb. of water in an evaporator producing caustic solution containing 40% NaOH by weight, at a pressure of 3.716 psia, when feeding 20%NaOH solution to the evaporator at the boiling temperature in the evaporator. What is the boiling point elevation? (Brown) a. What is the boiling point of water? b. The boiling point elevation

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