$A$ thermodynamic system undergoes a cyclic process $ABCDA$ as shown in the figure. The work done by the system in the cycle is

$A$ thermodynamic system is taken through the cycle $PQRSP$ process as shown in the figure. The net work done by the system is .... $J$. (Note: $1 \text{ kp} = 10^3 \text{ Pa}$,$1 \text{ cc} = 10^{-6} \text{ m}^3$)

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

The given diagram shows an ideal gas taken from state $1$ to $2$ through three different paths $A, B,$ and $C$. Let $Q, W,$ and $\Delta U$ represent the heat supplied to the gas,the work done by the gas,and the change in internal energy of the gas,respectively. Then which of the following conditions is true?

$A$ system is taken through a cyclic process represented by a circle as shown. The heat absorbed by the system is

An ideal gas undergoes the cyclic process $abca$ as shown in the given $P-V$ diagram. It rejects $50 \,J$ of heat during $ab$ and absorbs $80 \,J$ of heat during $ca$. During $bc$, there is no transfer of heat and $40 \,J$ of work is done by the gas. What should be the area of the closed curve $abca$ (in $\,J$)?