The specific heat capacity of a substance is related to the process. There are two kinds of constant pressure specific heat capacity CD and constant volume specific heat capacity Cp commonly used in engineering applications. Constant pressure specific heat capacity Cp is the energy absorbed or released by a substance with unit mass under the condition of constant specific capacity and unit temperature change. Constant volume specific heat Cv is the internal energy absorbed or released by a substance with unit mass under the condition of constant specific volume and unit temperature change.
In the middle school, it is simply defined as:
The heat absorbed (or released) when the temperature of a substance per unit mass rises by 65438 0℃ is called the specific heat capacity of the substance.
2. Calculation formula of specific heat capacity
Q=cm△t
C is the density of the object (for example, the density of water is 4.2 * 1000J/kg℃).
M is the mass of the object in kg.
△t is the temperature difference, that is, the higher temperature minus the lower temperature.