Three moles of an ideal monoatomic gas perform a cycle as shown in the figure. The gas temperature in different states are: $T_1 = 400\, K, T_2 = 800\, K, T_3 = 2400\,K$ and $T_4 = 1200\,K.$ The work done by the gas during the cycle is …….. $kJ$

Work done in the given $P-V$ diagram in the cyclic process is

A diatomic gas $(\gamma=1.4)$ does $200 \mathrm{~J}$ of work when it is expanded isobarically. The heat given to the gas in the process is:

Carnot cycle (reversible) of a gas represented by a Pressure-Volume curve is shown in the diagramConsider the following statements

$I.$ Area $ABCD =$ Work done on the gas

$II.$ Area $ABCD =$ Net heat absorbed

$III.$ Change in the internal energy in cycle $= 0$

Which of these are correct

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 $T-V$ indicator diagram. If $W_1, W_2$ and $W_3$ respectively be the work done by the gas along the three paths, then