An ideal monoatomic gas is taken round the cycle $ABCDA$ as shown in the following $P-V$ diagram. The work done during the cycle is

$A$ given mass of a gas expands from a state $A$ to the state $B$ by three paths $1, 2$ and $3$ as shown in the $T-V$ indicator diagram. If $W_1, W_2$ and $W_3$ respectively be the work done by the gas along the three paths,then

Work done for the process shown in the figure is ............ $J$

An ideal gas is taken through the cycle $A \to B \to C \to A$,as shown in the figure. If the net heat supplied to the gas in the cycle is $5\,J$,the work done by the gas in the process $C \to A$ is ...... $J$.

Work done in the cyclic process shown in the figure is ...........

The net work done by an ideal gas going through the cycle as shown in the $P-V$ diagram below is