A rigid vessel containing \(5 \mathrm{~mol}\) of \(\mathrm{He}\) gas at \(25^{\circ} \mathrm{C}\) is heated to \(225^{\circ} \mathrm{C}\). Calculate the heat requirements for the process, given that \(C_{V}=20.78 \mathrm{~kJ} / \mathrm{kmol}-\mathrm{K}\). Neglect the heat capacity of the vessel.