What is the highest temperature possible on the Kelvin scale?
The Kelvin scale is an absolute temperature scale discovered Lord Kelvin in 1848 who suggested that the molecular translational energy becomes zero at about -273 degrees Celsius which was the lowest temperature possible (absolute zero). Normal freezing and boiling points of water on the Kelvin scare are 273K and 373K. To convert Celsius to Kelvin, add 273.16.
There is no limit to how high the Kelvin scale can go. However, the hottest temperature ever recorded was 2 billion degrees Kelvin, or 3.6 billion degrees Fahrenheit, which is hotter than the interior of the sun which is about 15 million degrees Kelvin.
Thermonuclear explosions are estimated to reach only 10 million to 100 million degrees Kelvin, and other nuclear fusion experiments have achieved 500 million degrees Kelvin.
