The specific heat of water is the amount of heat energy required to raise the temperature of 1 gram of water by 1 degree Celsius.

Expression:

* c = Q / (m * ΔT)

Where:

* c is the specific heat capacity

* Q is the amount of heat energy transferred

* m is the mass of the substance

* ΔT is the change in temperature

Value:

* c = 4.184 J/(g °C)

This value is for liquid water at a temperature of 25°C. The specific heat of water can vary slightly depending on the temperature and pressure.

Therefore, the specific heat of water is 4.184 joules per gram per degree Celsius.