  We analyze the problem of black body radiation in the presence of quantum
gravity effects encoded in modified dispersion relations and in a model
universe with large extra dimensions. In this context, modified form of Planck
distribution, Jeans number, equipartition theorem, spectral energy density,
Stefan-Boltzmann law and Wien's law are found and the corresponding results are
interpreted. Then, entropy and specific heat of black body radiation are
obtained in this setup. Finally, the modified form of Debye law and
Dulong-Petit law are investigated in this framework.
