Question:
Which of the following is used for prediction of chemical composition of phases in phase diagram?
Which of the following is used for prediction of chemical composition of phases in phase diagram?
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Tie Line = Composition; Lever Rule = Relative Amount.
Updated On: Jul 4, 2026
- Tie Line
- Solvus line
- Lever rule
- Freezing range line
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The Correct Option is A
Solution and Explanation
Step 1: Concept
In a two-phase region of a binary phase diagram, a horizontal line is used to determine the specific compositions of the coexisting phases at a given temperature.
Step 2: Meaning
This horizontal line, known as an isotherm, connects the two phase boundaries (liquidus and solidus or solvus).
Step 3: Analysis
While the Lever Rule calculates the relative amounts (fractions) of each phase, the Tie Line intersections with the phase boundaries provide the actual chemical compositions.
Step 4: Conclusion
Therefore, the Tie Line is the correct tool for predicting the composition of phases. Final Answer: (A)
In a two-phase region of a binary phase diagram, a horizontal line is used to determine the specific compositions of the coexisting phases at a given temperature.
Step 2: Meaning
This horizontal line, known as an isotherm, connects the two phase boundaries (liquidus and solidus or solvus).
Step 3: Analysis
While the Lever Rule calculates the relative amounts (fractions) of each phase, the Tie Line intersections with the phase boundaries provide the actual chemical compositions.
Step 4: Conclusion
Therefore, the Tie Line is the correct tool for predicting the composition of phases. Final Answer: (A)
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