JEE Main 24 Feb 2021 Shift 2 Solved Paper

If one mole of an ideal gas at (p1,V1) is allowed to expand reversibly and isothermally ( A to B ), its pressure is reduced to one-half of the original pressure (see figure). This is followed by a constant volume cooling till its pressure is reduced to one-fourth of the initial value (B→C). Then, it is restored to its initial state by a reversible adiabatic compression ( C to A ). The net work done by the gas is equal to