sublimation curve
Quick Summary
In physics, sublimation is the direct conversion of a substance from a solid to a gaseous state without becoming liquid. This phenomenon is governed by vapor pressure and temperature relationships. A phase diagram visually represents the conditions under which these phase changes occur for a substance.12
The sublimation curve on a phase diagram illustrates the equilibrium between the solid and gas phases. When this curve is crossed, a substance transitions directly from solid to gas. For example, dry ice (solid carbon dioxide) sublimes at atmospheric pressure because its triple-point pressure is higher than atmospheric pressure. Freeze-drying food utilizes sublimation under a vacuum to preserve it.31
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