Because there are no negative numbers
Many thermodynamic equations need absolute numbers. At 0 degrees Kelvin, molecules stop. It is absolute 0--it doesn't get colder. There is a direct correlation between Kelvin and Celsius. For Fahrenheit, the absolute scale is called Rankine.
Kelvin K, Celsius
the two main scales used by scientists are Celsius and Kelvin (Kelvin being the most used because the range has a bottom out point at 0 degrees kelvin so there are no negatives). although a true 0 degree kelvin cannot be created kelvin is the most widely used. [technically, degrees Kelvin is grammatically wrong. Just Kelvin is correct. ]
The Kelvin scale starts at a true zero; 0o K is the temperature at which there is actually no heat. Therefore, you get a true measure of heat using this system; an object at twice the temperature in kelvins is actually twice as hot. That is not true of other temperature scales such as Celsius or Fahrenheit.
If you can measure 3 of these 4 things then you can use this formula q( energy in Joules ) = Mass * specific heat * temperature final - temperature initial
The SI unit for temperature is the kelvin.
Kelvin K, Celsius
Kelvin K, Celsius
Scientists use celsius and kelvin. The SI unit for temperature is Celsius.
The units that scientists use to measure temperature are: Celsius Fahrenheit Kelvin
Scientists commonly use the Celsius or Kelvin temperature scales.
Kelvin is the unit of temperature.
To measure temperature, scientists use:KelvinCelsiusFahrenheit.
More usually in the United States, but outside they mainly use Kelvin and Celsius.
Kelvin
Celsius, kelvin, Fahrenheit
To measure temperature, scientists use:KelvinCelsiusFahrenheit.
Usually it would be degrees Fahrenheit (°F).