At what temperature does a substance typically change from a liquid to a solid?

Prepare for the Sonography Entrance Exam. Study with quizzes and multiple choice questions, each featuring hints and thorough explanations. Excel on your test!

The transition of a substance from a liquid to a solid occurs at the freezing point. This is the specific temperature at which the molecules of a liquid slow down sufficiently for the attractions between them to cause them to arrange into a solid structure. When a substance reaches this temperature, it undergoes a phase change that results in the formation of a solid, effectively freezing the liquid.

The freezing point is an essential concept in thermodynamics and material science, as it applies not only to water but to all liquids. This point is indicative of the unique characteristics of a substance and is crucial for applications that rely on precise temperature control to achieve desired states of matter.

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