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Comparison of temperature scales. * Normal human body temperature is 36.8 °C ±0.7 °C, or 98.2 °F ±1.3 °F. The commonly given value 98.6 °F is simply the exact conversion of the nineteenth-century German standard of 37 °C. Since it does not list an acceptable range, it could therefore be said to have excess (invalid) precision.
Temperature; system unit code (alternative) symbol notes conversion to kelvin combinations SI: kelvin: K K [K] K °C (K C) ... R (K F R) K °F °C (K F C) degree ...
Coldest temperature that water can remain a liquid (see supercooling) 225 K: −48 °C: −55 °F: Freezing/melting point of cottonseed oil: 233.15 K: −40 °C: −40 °F: Intersecting point of the Celsius and Fahrenheit temperature scales Skin may freeze almost instantly at or below this temperature: 234.3 K: −38.83 °C: −37.89 °F
The "degree Kelvin" (°K) is a former name and symbol for the SI unit of temperature on the thermodynamic (absolute) temperature scale. [1] Since 1967, it has been known simply as the kelvin, with symbol K (without a degree symbol). [2] [3] [4] Degree absolute (°A) is obsolete terminology, often referring specifically to the kelvin but ...
This absolute scale is known today as the kelvin thermodynamic temperature scale. It's noteworthy that Thomson's value of −273 was actually derived from 0.00366, which was the accepted expansion coefficient of gas per degree Celsius relative to the ice point. The inverse of −0.00366 expressed to five significant digits is −273.22 °C ...
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 Kelvin scale is an absolute temperature scale that starts from 0 K, the lowest possible temperature (absolute zero), then rises by exactly 1 K for each 1 °C. The Kelvin scale was designed to be easily converted from the Celsius scale (symbol °C). Any temperature in degrees Celsius can be converted to kelvin by adding 273.15.
File:Kelvin Temperature Chart.svg. Size of this PNG preview of this SVG file: 800 × 354 pixels. Other resolutions: 320 × 142 pixels | 640 × 283 pixels | 1,024 × 453 pixels | 1,280 × 567 pixels | 2,560 × 1,133 pixels | 1,324 × 586 pixels. Original file (SVG file, nominally 1,324 × 586 pixels, file size: 21 KB) Commons is a freely ...