Symbol K. The SI unit of thermodynamic temperature equal to the fraction 1/273.16 of the thermodynamic temperature of the triple point of water. The magnitude of the kelvin is equal to that of the degree Celsius (centigrade), but a temperature expressed in degrees Celsius is numerically equal to the temperature in kelvins less 273.15 (i.e. °C=K−273.15). The absolute zero of temperature has a temperature of 0 K (−273.15°C). The former name degree kelvin (symbol °K) became obsolete by international agreement in 1967. The unit is named after Lord Kelvin.
Mathematics
The temperature scale, and the unit of measurement of temperature, which takes 0°K = –273.15°C as absolute zero, the lowest possible temperature, at which all thermodynamic motion has ceased. Then 1°K equals 1°C as a temperature difference.
Chemistry
The SI unit of thermodynamic temperature equal to the fraction 1/273.16 of the thermodynamic temperature of the triple point of water. The magnitude of the kelvin is equal to that of the degree Celsius (centigrade), but a temperature expressed in degrees celsius is numerically equal to the temperature in kelvins less 273.15 (i.e. °C = K – 273.15). The absolute zero of temperature has a temperature of 0 K (–273.15°C). The former name degree kelvin (symbol °K) became obsolete by international agreement in 1967. The unit is named after Lord Kelvin.
Chemical Engineering
The SI unit of thermodynamic temperature. The kelvin temperature scale is equal to the Celsius degree but with zero being absolute zero (0 K). The temperature is expressed in degrees Celsius less 273.15 (i.e. °C = K-273.15). The term ‘degrees Kelvin’ is no longer used. The unit is named after Lord Kelvin.
Biology
Symbol K. The SI unit of thermodynamic temperature equal to the fraction 1/273.16 of the thermodynamic temperature of the triple point of water. The magnitude of the kelvin is equal to that of the degree Celsius (centigrade), but a temperature expressed in degrees Celsius is numerically equal to the temperature in kelvins less 273.15 (i.e. °C=K−273.15). The unit is named after Lord Kelvin (1824–1907).