Due 11/15 4. Applying the lever rule. You have a mixture of molecules of A and B

Question

Due 11/15 4. Applying the lever rule. You have a mixture of molecules of A and B with the phase diagram shown in the figure below, at temperature To. The x-axis denotes the mole fraction of A. The mole-fraction composition of molecules of B in the container is xo 0.5. From the phase diagram, you are given x, 0.10 and x" = 0.70. 2/3 1 1/3 0 x'0.1 Xo 0.5 x" 0.7 (a) What is the fraction of the B-rich phase that are molecules of B? (b) What is the fraction of the A-rich phase that are molecules of A? o) Wihnt fractiuo ad al e

Explanation / Answer

answer.

The mole fraction compostion of molecules B in the container is X0=0.5

the molefraction of Molecule A=0.5-0.1=0.4

the molefraction of molecule B= 0.7-0.5=0.2

concentration of the system = 0.7-0.1=0.6

(a)answer.

The fraction of the Brich phase that are molecules of B=A/C=0.4/0.6=0.66

(b) answer

The fraction of the A rich phase that are molecules of A=B/C=0.2/0.6=0.33

(c) Answer

If the all molecules in the B phase then the total fraction of all the molecules are in B phase= 0.66+0.33=0.993

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