A sample of gas expands from V1=1.0m³ and
p1=10 Pa to 4.0 m³ and p2=10Pa along path B
in the P-V diagram in Fig. 3. It is then compressed back to V1
along either path A or path C . Compute the net work done by the
gas for the complete cycle along (a) path BA and (b) path BC .