Temperature in the Reamur Scale Is, Here's the Formula

Illustration of temperature (Unsplash)

YOGYAKARTA - Maybe we are more used to using Celsius to measure daily temperatures, such as when looking at weather forecasts or air conditioning temperatures. However, in the world of schools and science, there is another unit of temperature that we need to know, namely Reamur. Understanding temperature in the Reamur scale is important because it often appears in physics lessons and questions. Read this article to understand it further.

Temperature in the Reamur Scale Is?

Reamur is one of the units to measure heat or temperature. This scale was created in 1730 by René Antoine Ferchault de Réaumur, a French scientist. His discovery came when he made a thermometer using a mixture of alcohol and water.

What distinguishes the Reamur scale from the Celsius scale is its boiling point. If on the Celsius scale water freezes at 0 and boils at 100, on the Reamur scale water freezes at 0 and boils at 80. So, the range of boiling points is shorter than Celsius.

The reason why Ferchault de Réaumur chose the number 80 was based on his observations of the expansion of alcohol. He found that the volume of alcohol used would increase by 8% when heated from the freezing point to the boiling point of water. From his observations, he divided his thermometer scale into 80 degrees.

Previously, the Reamur scale was very popular in European regions such as France, Germany, and Russia. However, now the scale has been replaced with Celsius.

Reamur Scale Formula

To change the value of Temperature in the Reamur Scale to another unit, we can use the ratio of the numbers 4 (for Reamur) and 5 (for Celsius). The following is the basic formula as follows.

Reamur to Celsius: C = (5/4) x RReamur to Fahrenheit: F = (9/4 x R) + 32Reamur to Kelvin: K = (5/4 x R) + 273.15Use of the Reamur Scale in Industry

Although it is now rarely used in everyday life, Reamur still often appears in physics questions at school. In the industrial world, the Reamur scale is still often used. For example in the food processing industry.

In the process of making candy, syrup, or milk processing (such as cheese), the Reamur scale is sometimes still used. The range of numbers 0-80 is considered to make it easier for technicians to see very detailed changes in temperature when heating heat-sensitive food.

Understanding temperature on the Reamur scale is important to understand the development of temperature measurement in general. Visit VOI.id for other interesting information.