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Guidelines for Examination

 
 

1.1.1 Special name and symbol of the SI derived unit of temperature for expressing Celsius temperature

Quantity

Unit

 

 

Name

Symbol

Celsius temperature

degree Celsius

C

 

Celsius temperature t is defined as the difference t = T-To between the two thermodynamic temperatures T and To where To = 273.15 K. An interval of or difference in temperature may be expressed either in kelvins or in degrees Celsius. The unit of 'degree Celsius' is equal to the unit 'kelvin'.