Specific Heat Capacity
Specific heat capacity is defined as the amount of heat required to change the temperature of 1 kg of a substance by 1°C.
- Specific heat capacity is a physical quantity used to compare the heat capacity of a given material of the same mass.
- It is the measure of how much energy can be store in 1 kg of mass of a substance.
- Specific heat capacity is defined as the amount of heat required to change the temperature of 1 kg of a substance by 1°C.
Mathematically, c= Q/mθ [Q = heat, c = specific heat capacity, m = mass, θ = change of temperature]
- The SI unit of specific heat capacity is J/kg/°C.
- For example, the specific heat capacity of water is 4200 J/kg/°C means 4200J of heat energy is needed to change the temperature of 1kg water by 1°C.
- The amount of heat transferred in an object when temperature change can be calculated by using the following equation.