Rankine (abbreviations: R, or °R, or deg R): is a thermodynamic temperature based on an absolute scale named with regard to the Glasgow University engineer and physicist William John Macquorn Rankine, who proposed it in 1859.
Celsius (abbreviations: C, or °C, or deg C): also known as centigrade, is a SI metric scale and unit of measurement for temperature and used by most countries in the world. It is named with regard to the Swedish astronomer Anders Celsius (1701–1744), who developed a similar temperature scale.
How to Convert Degree Rankine to Degree Celsius
Example: How many degree Celsius are equivalent to 77.39 degree Rankine?
As;
1 degree Rankine = (X-491.67)*(5/9) degree Celsius
77.39 degree Rankine = Y degree Celsius
Assuming Y is the answer, and by substitution principle;
Y equals ( (77.39-491.67)*(5/9) ) over 1, where X is substituted by 77.39
(i.e.) Y = ( (77.39-491.67)*(5/9) ) / 1 = -230.15555555556 degree Celsius
Answer is: -230.15555555556 degree Celsius are equivalent to 77.39 degree Rankine.
Practice Question: Convert the following units into C:
N.B.: After working out the answer to each of the next questions, click adjacent button to see the correct answer.
( i ) 26.99 R
( ii ) 79.2 R
( iii ) 31.26 R
