10 Questions
What is the freezing point of lead in degrees Celsius?
327oC
What is the composition of the eutectic point on the phase diagram?
2.6 mass % Ag
In which region of the phase diagram does the crystallization of lead begin?
AB or BC
What is the significance of the area above the curve ABC on the phase diagram?
It represents the liquid phase.
What is the process of heating argentiferous lead and cooling to get pure lead and liquid richer in silver known as?
Pattinson's process
What is the point on the phase diagram where solid lead starts separating during the Pattinson's process?
a'
What is the composition of the solid mixture in the region below the curve DBE?
T or composition
What is the significance of the curve AB on the phase diagram?
It represents the solid lead in equilibrium with liquid having a composition given by the curve.
What is the significance of the point C on the phase diagram?
It represents the freezing point of silver.
What is the purpose of the Pattinson's process?
To obtain pure lead and liquid richer in silver
Test your understanding of phases of matter, including mixtures of gases and liquids, and how they interact with each other. Learn about the different phases of water and how miscibility affects the formation of phases.
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