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The normal boiling point (also called the atmospheric boiling point or the atmospheric pressure boiling point) of a liquid is the special case in which the vapor pressure of the liquid equals the defined atmospheric pressure at sea level, one atmosphere.
The boiling point of water is typically considered to be 100 °C (212 °F; 373 K), especially at sea level. Pressure and a change in the composition of the liquid may alter the boiling point of the liquid. High elevation cooking generally takes longer since boiling point is a function of atmospheric pressure.
At sea level, water boils at 100 °C (212 °F). For every 152.4-metre (500 ft) increase in elevation, water's boiling point is lowered by approximately 0.5 °C. At 2,438.4 metres (8,000 ft) in elevation, water boils at just 92 °C (198 °F). Boiling as a cooking method must be adjusted or alternatives applied.
This is the lowest natural point on land. [1] [2] 2: Byrd Glacier: −2,780 m (−9,121 ft) ... The biggest dry land area below sea level that has been known to exist ...
At the nominal body temperature of 37 °C (99 °F), water has a vapour pressure of 6.3 kilopascals (47 mmHg); which is to say, at an ambient pressure of 6.3 kilopascals (47 mmHg), the boiling point of water is 37 °C (99 °F). A pressure of 6.3 kPa—the Armstrong limit—is about 1/16 of the standard sea-level atmospheric pressure of 101.3 ...
A below-sea-level surface pressure record of 1,081.8 hPa (31.95 inHg) was set on 21 February 1961. ... The boiling point is the temperature at which the vapour ...
The boiling point of water is the temperature at which the saturated vapor pressure equals the ambient pressure. Water supercooled below its normal freezing point has a higher vapor pressure than that of ice at the same temperature and is, thus, unstable. Calculations of the (saturation) vapor pressure of water are commonly used in meteorology.
This is a list of the various reported boiling points for the elements, with recommended values to be used elsewhere on Wikipedia. For broader coverage of this topic, see Boiling point . Boiling points, Master List format