
Concept explainers
(a)
Interpretation: The temperature and pressure where all the three solid phases of Thallium metal present and the melting point of Thallium increase or decrease with increasing pressure is to be stated.
Concept introduction: Phase diagrams are the equilibrium diagrams that show the phases and how these phases are affecting due to the changes in temperature, pressure and composition of an alloy.
There are three different lattices or structures, body-centered cubic (bcc), face-centered cubic (fcc) and hexagonal close-packed (hcp). Eutectic point is the point at which temperature is the lowest and the point of intersection is between the liquid and solid.
To determine: The temperature and pressure where all the three solid phases of Thallium metal present.
(b)
To determine: The melting point of Thallium increase or decrease with increasing pressure.

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Chapter 12 Solutions
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