GATE ME 2016 Set 2 — Question 58
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Engineering Materials → Structure & Properties → Binary Phase Diagrams & Lever Rule
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Question
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
Correct answer
(A) 0.40
Solution
The fraction of phases in a binary system can be determined using the lever rule.
1.Let:
- (Overall composition of component A)
- (Composition of component A in the liquid phase)
- (Composition of component A in the solid phase)
3.Substitute the values:
Therefore, the fraction of solid is . Correct option is (A).Continue learning with Success Tracker
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