How can a temperature in degree Celsius be converted into S.I. unit of temperature?

Question

(i) How can a temperature in degree Celsius be converted into S.I. unit of temperature? 

(ii) A liquid X has the maximum specific heat capacity and is used as a coolant in Car radiators. Name the liquid X.

Answer 1

(i) The S.I. unit of Temperature is K. We convert °C to K by adding 273.

→ K =° C + 273

(ii) The liquid X is water used as coolant in car.