Where is the boiling point on a phase diagram?
Understand the Problem
The question is asking about the location of the boiling point on a phase diagram, which illustrates the phases of a substance at different temperatures and pressures. We need to identify the specific area where the transitions between phases occur, particularly how it relates to the transition from liquid to gas.
Answer
On the liquid-gas equilibrium line at 1 atm pressure.
The boiling point on a phase diagram is determined by locating the liquid-gas equilibrium line at 1 atm of pressure and drawing a line down to the temperature axis.
Answer for screen readers
The boiling point on a phase diagram is determined by locating the liquid-gas equilibrium line at 1 atm of pressure and drawing a line down to the temperature axis.
More Information
The normal boiling point is the temperature at which a liquid boils under 1 atmosphere of pressure.
Tips
A common mistake is confusing the liquid-gas equilibrium line with other phase boundaries like the melting point.
Sources
- How to Label a Phase Diagram - Explanation - study.com
- Phase Diagrams - Chemistry LibreTexts - chem.libretexts.org
- Phase Diagrams for Pure Substances - Chemistry LibreTexts - chem.libretexts.org
