This is the most classical type of phase diagram, widely used when considering a substance at a fixed composition.
Composition phase diagrams are phase diagrams that also consider variations in composition of a mixture. The most classic of such diagrams are temperature-composition phase diagrams for binary alloys.
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A phase diagram is a graphical representation that shows the phases of a substance (solid, liquid, gas) as a function of temperature and pressure. It illustrates the conditions under which distinct phases occur and coexist in thermodynamic equilibrium. Key features of a typical phase diagram include: 1. **Axes**: The horizontal axis usually represents temperature, while the vertical axis represents pressure. 2. **Phase Regions**: Different areas or regions on the diagram represent different states of matter.