The joule is a unit of energy. The Kelvin is a unit of temperature. The two units have different
dimensions, and are used to measure different types of quantities. Neither one can be converted
to the other.
If the weatherman predicts a high temperature of 68 degrees for tomorrow, there's no way
you can convert that to an equivalent number of foot-pounds, newton-meters, or kilowatt-hours.
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Joules and Kelvin are different types of units used to measure energy and temperature, respectively. They are not directly convertible because they represent different physical quantities. Joules measure energy, whereas Kelvin measures temperature. Conversion between the two requires consideration of the specific physical process involved.
The units for entropy are joules per kelvin (J K-1)
No, it is not. it can be seen when looking at the conversion factor of Kelvin to Celsius, let K=kelvin and C=celsius, then the equation is K=273.15+C, the units are changed but the value of change is the same.
The heat capacity of a substance is typically measured in units of energy per degree Celsius (Joules per degree Celsius, J/C) or energy per Kelvin (Joules per Kelvin, J/K).
-55 degrees Fahrenheit is approximately 230 Kelvin on the Kelvin scale. You can convert Fahrenheit to Kelvin by adding 459.67 to the Fahrenheit temperature and then multiplying by 5/9.
In SI units J K-1 mol-1 (Joules/ Kelvin mol or Joules per kelvin per mol) in some older chemistry text books they quote L atm K-1 mol-1 (liter atmospheres per degree kelvin per mol) (see wikipedia "Gas constant" for a list of the dimensions in other systems of units)