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

Question

( A ) diatomic
( B ) monoatomic
( C ) a mixture of monoatomic and diatomic
( D ) triatomic