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Water boiling at 99.3 °C (210.8 °F) at 215 m (705 ft) elevation. 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.
For much of the 20th century, the Fahrenheit scale was defined by two fixed points with a 180 °F separation: the temperature at which pure water freezes was defined as 32 °F and the boiling point of water was defined to be 212 °F, both at sea level and under standard atmospheric pressure. It is now formally defined using the Kelvin scale.
The degree Celsius (°C) can refer to a specific temperature on the Celsius scale as well as a unit to indicate a temperature interval (a difference between two temperatures). From 1744 until 1954, 0 °C was defined as the freezing point of water and 100 °C was defined as the boiling point of water, both at a pressure of one standard atmosphere.
the heat of a bath in which solid wax melts and is conserved in liquid state without boiling 28: 2 + 1 ⁄ 4: intermediate point between the boiling point of water and the melting point of wax 34: the heat at which water boils vehemently (the temperature at which water begins to boil is given as an additional value in the description, as 33) 40
Lowest recorded surface temperature on Earth [1] Fahrenheit's ice/water/salt mixture: Melting point of ice (at standard pressure) Average surface temperature on Earth (15 °C) Average human body temperature (37 °C) Highest recorded surface temperature on Earth [2] Boiling point of water (at standard pressure)
This Wikipedia page provides a comprehensive list of boiling and freezing points for various solvents.
Boiling is the method of cooking food in boiling water or other water-based liquids such as stock or milk. [13] Simmering is gentle boiling, while in poaching the cooking liquid moves but scarcely bubbles. [14] The boiling point of water is typically considered to be 100 °C (212 °F; 373 K), especially at sea level.
Fahrenheit Celsius Réaumur Temperature Absolute zero: 0 K 0 °Ra −459.67 °F −273.15 °C -218.52 °Ré Freezing point of brine [a] 255.37 K 459.67 °Ra 0 °F −17.78 °C −14.224 °Ré Freezing point of water [b] 273.15 K 491.67 °Ra 32 °F 0 °C 0 °Ré Boiling point of water [c] 373.1339 K 671.64102 °Ra 211.97102 °F 99.9839 °C