Is there a significant difference between the freezing point and melting point, as well as the bubble point and dew point, of a pure substance?
Thread Content
What do the freezing point, melting point, bubble point, and dew point of a pure substance represent, and what are the differences between them?
Pure substances do not have a bubble point or dew point; they only have a boiling point
The phase transition points of pure substances are fixed, representing a typical process of qualitative change. The phase transition of the mixture may be a gradual process. Melting point and boiling point are generally applied to pure substances, whereas freezing point, bubble point, and dew point are more often used for mixtures.
The freezing point of a pure substance equals its melting point; the concepts of bubble point and dew point do not apply.