# Kelvin scale

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Related to Kelvin scale: Celsius scale

## Kelvin scale

a thermodynamic temperature scale based upon the efficiencies of ideal heat engines. The zero of the scale is absolute zero. Originally the degree was equal to that on the Celsius scale but it is now defined so that the triple point of water is exactly 273.16 kelvins. The International Practical Temperature Scale (1968, revised 1990) realizes the Kelvin scale over a wide range of temperatures
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

## Kelvin scale

[′kel·vən ‚skāl]
(thermodynamics)
The basic scale used for temperature definition; the triple point of water (comprising ice, liquid, and vapor) is defined as 273.16 K; given two reservoirs, a reversible heat engine is built operating in a cycle between them, and the ratio of their temperatures is defined to be equal to the ratio of the heats transferred.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
KELVIN SCALE Rooney, who came off the bench, is denied by Saints keeper Kelvin Davis; 1-0; 2-0; 3-0; THREE RANGE Youngster Danny Welbeck nods United in front (top) and they doubled their advantage from the spot (centre) when Nani cooly tucked away a penalty.
How much does -273 1/4 C measure on the Kelvin scale?
The Kelvin scale represents the ultimate extremes of hot and cold whereby "zero degrees is the theoretically lowest temperature possible where molecular motion ceases" (Brannan, 2004).
(A thermometric calibration system based on absolute zero is called the Kelvin scale.) His purchase of a yacht, in 1870, meant not only boating pleasure but a new range of scientific questions to investigate, particularly the compass deviations caused by the ever-increasing amounts of iron used in ship construction.
This works because the Kelvin scale goes down to absolute zero, and a temperature change adequate to cause one dB of change in the link in either direction is way more than that which causes humans to die.

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