.:heat capacity and specific heat capacity:.

Heat capacity (usually denoted by a capital C, often with subscripts) is the measurable physical quantity that characterizes the amount of heat required to change a body's temperature by a given amount. In the International System Of Units, heat capacity is expressed in units of joules per Kelvin.

The more we heat an object, the higher it's temperature.

* the quantity of heat (q) absorbed by an object is proportional to it's temperature changes.

* q α ΔT, q= constant × ΔT

*Heat capacity is proportionally constant in the preceding equation:

heat capacity (C) = q/(ΔT) [unit: J/K]

Derived quantities that specify heat capacity as an intensive property, independent of the size of the sample, are the molar heat capacity, which is the heat capacity per mole of a pure substance, and the specific heat capacity, often called simply specific heat, which is the heat capacity per unit mass of a material.

The quantity of heat required to change the temperature of 1 gram of a substance by 1 K.

Specific heat capacity (c) = q / (mass × ΔT) [unit: J/g·K]