The work of 146 kJ is performed in order to compress one kilo mole of a gas adiabatically and in this process the temperature of the gas increases by 7°C. The gas is:
$\left(\mathrm{R}=8.3 \mathrm{J} {\mathrm{mol}}^{-1}{\mathrm{K}}^{-1}\right)$

• A

  diatomic

• B

  triatomic

• C

  a mixture of monoatomic and diatomic

• D

  monoatomic