• # question_answer An ideal gas is taken through the cycle $A\to B\to C\to A$ as shown in figure. If the net heat supplied to the gas in the cycle is 5l, the work done by the gas in the process $C\to A$ is: A)  $-5J$            B)  $-10J$C)  $-15J$                       D)  $-20J$

Given,    ${{W}_{AB}}+{{W}_{BC}}+{{W}_{CA}}=5$ $10+0+{{W}_{CA}}=5$ (as, during BC, change volume = 0)             ${{W}_{CA}}=-5J$