Rankine scale
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The Rankine scale (Template:IPAc-en Template:Respell) is an absolute scale of thermodynamic temperature named after the University of Glasgow engineer and physicist W. J. M. Rankine, who proposed it in 1859.[1] Similar to the Kelvin scale, which was first proposed in 1848,[1] zero on the Rankine scale is absolute zero, but a temperature difference of one Rankine degree (°R or °Ra) is defined as equal to one Fahrenheit degree, rather than the Celsius degree used on the Kelvin scale. In converting from kelvin to degrees Rankine, Script error: No such module "convert". or Script error: No such module "convert".. A temperature of Script error: No such module "convert". is equal to Script error: No such module "val"..[2][3]
Usage
The Rankine scale is used in engineering systems where heat computations are done using degrees Fahrenheit.[4]Template:Better citation needed
The symbol for degrees Rankine is °R[2] (or °Ra if necessary to distinguish it from the Rømer and Réaumur scales). By analogy with the SI unit kelvin, some authors term the unit Rankine, omitting the degree symbol.[5][6]
Some temperatures relating the Rankine scale to other temperature scales are shown in the table below.
| Scale | ||||||
|---|---|---|---|---|---|---|
| Kelvin | Rankine | Fahrenheit | Celsius | Réaumur | ||
| Temperature | Absolute zero | Script error: No such module "convert". | Script error: No such module "val". | |||
| Freezing point of brineTemplate:Efn | Script error: No such module "convert". | Script error: No such module "val". | ||||
| Freezing point of waterTemplate:Efn | Script error: No such module "convert". | Script error: No such module "val". | ||||
| Boiling point of waterTemplate:Efn | Script error: No such module "convert". | Script error: No such module "val". | ||||
See also
Notes
References
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External links
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