Specific Heat Capacity
Specific heat capacity is defined as the number of heat changes i.e. heat absorbed or rejected by a substance per unit mass in order to change its temperature by one unit.
When the same quantity of heat is applied to the same mass of different substances, the resulting temperature changes are not the same. It indicates that each substance has a distinct value for the quantity of heat absorbed or rejected to change the temperature of its unit mass by one unit. The specific heat capacity of a substance is the measurement of this quantity. It is symbolized by the letter s.
If C is the amount of heat absorbed or rejected i.e. ΔQ by a substance of mass m when it experiences a temperature change ΔT, then the specific heat capacity, of that substance is given by
S = C/m = (1/m) (ΔQ / ΔT)
Hence, the specific heat capacity is the property of the substance which determines the change in temperature of the given quantity of a substance which is the amount of heat absorbed or rejected. The given substance is undergoing no phase change during temperature change. It is dependent on the substance’s nature and temperature. J kg–1 K–1 is the SI unit for specific heat capacity.
Heat Capacity
Heat capacity or thermal capacity is an extensive property of matter, that defines its physical property. Heat Capacity is the amount of heat that must be applied to an object in order to cause a unit change in temperature. Heat capacity is measured in Joules per Kelvin (J/K), which is its SI unit. When heat capacity is divided by the mass of the substance, gives the corresponding intensive property called Specific Heat Capacity. Moreover, heat capacity divided by the amount of substance in volumes gives Molar Heat Capacity. Hence, in this article, we’ll understand the important concepts of Heat Capacity like its definition, explanation, formula, unit, specific heat capacity, molar heat capacity