Water as Heating agent
Q :- Water is used as heating agent as well as cooling agent. Why?
Ans :- Water is used as heating agent because it has high specific heat capacity (4200 j/Kg0C). So, to decrease the temperature of 1 kg of water through 10C, it has to loose 4200 J of heat energy. That’s why it takes more time to loose such huge amount of energy and remains warm for long period of time.
It is also used as cooling agent because of high specific heat capacity, it has to gain more amount of heat to increase its temperature. To gain such high amount of heat, it takes more time and remains cool for long time.