High School

Composition (at% Sn) 0 20 40 60 80 100 1 . 327°C 600 300 Liquid 500 232°C a + L 200 a 183°C B +L 400 Temperature (°C) Temperature (°F) 18.3 61.9 97.8 300 100 a + B 1200 100 0 20 40 60 80 100 (Pb) Composition (wt% Sn) Adapted from Binary Alloy Phase Diagrams, 2nd edition, Vol. 3. T. B. Massalski (Editor-in-Chief), 1990. Reprinted by permission of ASM International, Materials Park, OH. (Sn)

Answer :

Final answer:

The subject of this question is Chemistry. It involves the study of binary alloy phase diagrams and understanding phase transitions based on composition and temperature.

Explanation:

The subject of this question is Chemistry. It involves the study of binary alloy phase diagrams, specifically the composition (in at% Sn) and temperature data presented in a graph.

In this graph, the x-axis represents the composition (at% Sn) and the y-axis represents the temperature (°C). The graph shows the temperature at which certain phase transitions occur, such as the melting of a solid into a liquid or the formation of different solid phases.

This question is likely suitable for college level, as it involves analyzing complex data and understanding phase diagrams in materials science and metallurgy.

Learn more about Binary alloy phase diagrams here:

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