In a binary system of A and B a liquid of 20% A (80% B) is coexisting with a solid of 70% A(30%B). For an overall composition having 40% A the fraction of solid is

In a binary system of A and B a liquid of 20% A (80% B) is coexisting

1.	In a binary system of A and B a liquid of 20% A (80% B) is coexisting with a solid of 70% A(30%B). For an overall composition having 40% A the fraction of solid is
A.	0.40
B.	0.50
C.	0.60
D.	0.75
Answer» B. 0.50

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In a binary system of A and B a liquid of 20% A (80% B) is coexisting with a solid of 70% A(30%B). For an overall composition having 40% A the fraction of solid is

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