An analytical equation for the heat capacity of Plutonium nitride (PuN) nuclear fuel has been performed by the use of the n-dimensional Debye function in the temperature range 298 - 3000 K. The results obtained for the heat capacity were compared with the literature data, and are found to be in good agreement. This agreement is shown that the present theoretical method would be useful to calculate the heat capacity of nuclear fuels such as Plutonium nitride.

Keywords
Heat Capacity; Plutonium Nitride; Debye Function