Question

The magnitude of word done by a gas that undergoes a reversible expansion along the path ABC shown in the figure is___________Nm.

Answer 1

$W_{AB}=8\times 6=48\,Nm$
$W_{BC}=\frac{1}{2}\times 4\times 8=16\,Nm$
$W_{AB}+W_{BC}=64\,Nm$