In this text we will address Rankine scale, a topic of great relevance and interest today. _Var1 has captured the attention of specialists, academics and the general public due to its impact on various aspects of daily life. Over the last few decades, Rankine scale has experienced a notable increase in its importance, becoming a subject of study and research in fields as diverse as medicine, technology, economics and culture. In this article, we will delve into the various aspects related to Rankine scale, exploring its origin, evolution, impact and future prospects. Through detailed analysis, we will seek to shed light on this topic to better understand its scope and meaning in contemporary society.
Rankine | |
---|---|
Unit of | Temperature |
Symbol | R, °R, °Ra |
Named after | Macquorn Rankine |
Conversions | |
x R in ... | ... corresponds to ... |
Kelvin scale | 5/9 x K |
Celsius scale | (5/9 x − 273.15) °C |
Fahrenheit | (x − 459.67) °F |
The Rankine scale (/ˈræŋkɪn/) is an absolute scale of thermodynamic temperature named after the University of Glasgow engineer and physicist Macquorn Rankine, who proposed it in 1859.
Similar to the Kelvin scale, which was first proposed in 1848, 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, 1 K = 9/5 °R or 1 K = 1.8 °R. A temperature of 0 K (−273.15 °C; −459.67 °F) is equal to 0 °R.
The Rankine scale is still used in engineering systems where heat computations are done using degrees Fahrenheit.
The symbol for degrees Rankine is °R (or °Ra if necessary to distinguish it from the Rømer and Réaumur scales). By analogy with the SI unit (Kelvin scale), some authors term the unit Rankine - omitting the degree symbol.
Some temperatures relating the Rankine scale to other temperature scales are shown in the table below.
Scale | |||||
---|---|---|---|---|---|
Celsius (°C) | Fahrenheit (°F) | Kelvin (K) | Rankine (°R) | ||
Temperature | Absolute zero | −273.15 | −459.67 | 0 | 0 |
Freezing point of brine | −17.78 | 0 | 255.37 | 459.67 | |
Freezing point of water | 0 | 32 | 273.15 | 491.67 | |
Boiling point of water | 99.9839 | 211.97102 | 373.1339 | 671.64102 |