5 moles of hydrogen $(\gamma =7/5)$ initially at STP are compressed  adiabatically so that its temperature becomes  ${400}^{0}C$. The increase in the internal energy of the gas in kilo-J is$(\mathrm{R}=8.30\mathrm{J} \text{mol}{e}^{-1}{\mathrm{K}}^{-1})$ (nearest integer is)