Difference between specific heat capacity and heat capacity?question from physics chapter calorimetry.

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valentin68 | College Teacher | (Level 3) Associate Educator

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By DEFINITION the heat (or caloric) capacity `C` (upper case C letter) of a given mass is equal to the heat `Q` necessary for that particular mass to change its temperature `T` with 1 degree of temperature.

`Q =C*Delta(T)`

Again by DEFINITION the specific heat (or caloric) capacity `c` (lower case c letter) of a given substance is equal to the heat `Q` necessary for a mass `m` of 1 kg of that given substance to change its temperature `T` with 1 degree of temperature.

`Q =m*c*Delta(T)`


Thus

`c =C/m`

Therefore the difference is that the heat capacity refers to the entire given mass, and specific heat capacity refers only to a mass of 1 kg from the given substance.

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