Which temperature scale is distinct from Celsius?

The Kelvin scale is distinct from the Celsius scale in that it is an absolute temperature scale, starting at absolute zero, which is considered to be the point at which molecular motion ceases. In the Kelvin scale, each unit of temperature increase is equivalent to that of the Celsius scale; however, the key difference lies in their starting points. While Celsius sets zero degrees at the freezing point of water, the Kelvin scale begins at 0 K, which corresponds to -273.15 degrees Celsius. This absolute nature makes the Kelvin scale particularly useful in scientific contexts where calculations involving thermodynamic properties and absolute temperature are necessary.

In contrast, the other temperature scales mentioned, including Fahrenheit, Reaumur, and Rankine, each have different zero points and increments, making them more suited for specific applications but not absolute like Kelvin. For example, Fahrenheit is based on a different set of reference points, and Reaumur uses yet another system of increments. Rankine, while absolute like Kelvin, is structured differently and aligns with the Fahrenheit scale rather than Celsius. Thus, the Kelvin scale is uniquely distinguished from Celsius due to its absolute basis and universal applicability in scientific measurement.