Rankine scale definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. It may be used in … It is based around absolute zero.Rankine is similar to the Kelvin scale in that it starts at absolute zero and 0 °Ra is the same as 0 K but is different as a change of 1 °Ra is the same as a change of 1 °F and not 1 °C ().Note that the abbreviation °R is ambiguous, as it can also refer to the Réaumur scale. The Rankine scale (/ˈræŋkɪn/) is an absolute scale of thermodynamic temperature named after the Glasgow University engineer and physicist William John Macquorn Rankine, who proposed it in 1859. A temperature difference of 1°F is the equivalent of a temperature difference 0.556°C. The Rankine scale is a thermodynamic (absolute) temperature scale. (The Kelvin scale was first proposed in 1848.) Rankine is an absolute temperature scale, and has the property of having a 1°R change equal to a 1°F change. To convert from Kelvin to Rankine, multiply the Kelvin temperature by 9/5. Example. (The Kelvin scale was first proposed in 1848.). The Rankine temperature scale uses the same size degree as Fahrenheit, but has its zero set to absolute zero. Rankine temperature scale, temperature temperature, measure of the relative warmth or coolness of an object. Absolute zero is defined as -459.67°F. Temperature is measured by means of a thermometer or other instrument having a scale calibrated in units called degrees. This puts the boiling and freezing points of water exactly 180 degrees apart. This means Fahrenheit users who need to work with absolute temperatures will find it easier to use the Rankine scale instead of the Kelvin scale. The symbol for degrees Rankine is °R (or °Ra if necessary to distinguish it from the Rømer and Réaumur scales). T (°R) = T (°F) + 459.67. 0 degrees Fahrenheit is equal to 459.67 degrees Rankine: 0 °F = 459.67 °R. Rankine definition is - being, according to, or relating to an absolute-temperature scale on which the unit of measurement equals a Fahrenheit degree and on which the freezing point of water is 491.67° and the boiling point 671.67°. Rankine is a thermodynamic (absolute) temperature scale named after the Glasgow University engineer and physicist William John Macquorn Rankine, who proposed it in 1859. The size of a degree depends on the particular temperature scale … The Rankine scale (/ ˈ r æ ŋ k ɪ n /) is an absolute scale of thermodynamic temperature named after the Glasgow University engineer and physicist Macquorn Rankine, who proposed it in 1859. How to convert Fahrenheit to Rankine. To convert from Fahrenheit to Rankine, add 459.67 to the Fahrenheit reading. 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