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The boiling point of a substance is the temperature at which the vapor pressure of a liquid equals the pressure surrounding the liquid [1] [2] and the liquid changes into a vapor. The boiling point of a liquid varies depending upon the surrounding environmental pressure.
12. Apr. 2024 · Boiling point is the temperature at which a liquid turns into vapour without changing its temperature. Learn how boiling point depends on pressure, how it varies for different substances, and how it relates to vaporization and condensation.
- The Editors of Encyclopaedia Britannica
25. Mai 2022 · Learn what boiling point is, how it depends on pressure and purity, and how to measure it. See the normal and standard boiling points of the elements and the difference between boiling and evaporation.
The boiling point is the temperature at which boiling occurs for a specific liquid. For example, for water, the boiling point is 100ºC at a pressure of 1 atm. The boiling point of a liquid depends on temperature, atmospheric pressure, and the vapor pressure of the liquid.
If this pressure is the standard pressure of 1 atm (101.3 kPa), then the temperature at which the liquid boils is referred to as its normal boiling point. This is the boiling point which is usually quoted in chemical literature.
6. Mai 2019 · Boiling point is the temperature at which the vapor pressure of a liquid equals the external pressure surrounding the liquid. Learn how boiling point depends on atmospheric pressure and how it differs from evaporation.
The following table illustrates some of the factors that influence the strength of intermolecular attractions. The formula of each entry is followed by its formula weight in parentheses and the boiling point in degrees Celsius. First there is molecular size.
