Chemical Engineering - Mass Transfer - Discussion

Discussion Forum : Mass Transfer - Section 6 (Q.No. 39)
39.
In a liquid-liquid extraction, 10 kg of a solution containing 2 kg of solute C and 8 kg of solvent A is brought into contact with 10 kg of solvent B. Solvent A and B are completely immiscible in each other whereas solute C is soluble in both the solvents. The extraction process attains equilibrium. The equilibrium relationship between the two phases is Y* = 0.9X, where Y* is the kg of C/kg of B and X is kg of C/kg of A. Choose the correct answer.
The entire amount of C is transferred to solvent B.
Less than 2 kg but more than 1 kg of C is transferred to solvent B.
Less than 1 kg of C is transferred to B.
No amount of C is tranferred to B.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
3 comments Page 1 of 1.

Saurabh Limbasiya said:   5 years ago
Material Balance :
2=10y*+8x
Y*=0.9x
Solving that ..y*=0.10588.

So the transfer of C=(y*)*B.
=0.10588*10,
=1.0588.
So correct answer is (B).
(1)

Mohit Prajapati said:   7 years ago
Yes, the correct answer is B.

Dhrumil said:   8 years ago
I think the answer is B because Y* = 18/17.

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