In thermodynamics, heat and work are :

Which one is the correct option for the two different thermodynamic processes ?

The $P-V$ diagram of a diatomic ideal gas system going under cyclic process as shown in figure. The work done during an adiabatic process $CD$ is (use $\gamma =1.4)$ :

Match List $\mathrm{I}$ with List $\mathrm{II}.$

Choose the correct answer from the options given below:

$n$ mole of a perfect gas undergoes a cyclic process $ABCA$ (see figure) consisting of the following processes.

$A\to B:$ Isothermal expansion at temperature $T$ so that the volume is doubled from $V_1$ to $V_2=2V_1$ and pressure changes from $P_1$ to $P_2$
$B\to C:$ Isobaric compression at pressure $P_2$ to initial volume $V_1.$

$C\to A:$ Isochoric change leading to change of pressure from $P_2$ to $P_1$

Total work done in the complete cycle $ABCA$ is: