Mass Transfer
In a single stage extraction process, 10 kg of pure solvent S (containing no solute A) is mixed with 30 kg of feed F containing A at a mass fraction xf = 0.2. The mixture splits into an extract phase E and a raf-finate phase R containing A at xB = 0.5 and xR = 0.05 respectively. The total mass of the extract phase is (in Kg)

8.25
10
8.89
6.89

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Mass Transfer
The McCabe Δ L law states that the

Molar heats of vaporisation of components are nearly equal
Linear crystal growth rate depends on the degree of supersaturation
Linear crystal growth rate does not depend on the crystal size
Linear crystal growth rate depends on the crystal size

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