The heat capacity formula is the change in heat divided by the change in temperature. The heat capacity is defined as the amount of heat needed to increase a substance's temperature by 1 degree.
In standard mathematical notation, the change in temperature is represented by ΔT, the change in heat is represented by ΔQ, and the heat capacity is represented by the symbol C. The delta symbol (Δ) is used to indicate a change in values. The heat capacity is usually expressed in Joules per degree Celsius or Joules per degree Kelvin. The molar heat capacity can be calculated in Joules per mole of degrees Celsius or Kelvin.