In the reported figure, heat energy absorbed by a system in going...

For complete cyclic process
$\DeltaU = 0$
$∴$ from $\DeltaQ = \DeltaU + W$
$= 0 + W$
$\DeltaQ = W$
=Area
$= \pi{r}_{1} \cdot {r}_{2}$
$= \pi \times \left(10 \times {10}^{3}\right) \times \left(10 \times {10}^{- 3}\right)$
$\DeltaQ = 100\pi$
$∴$ Answer $= 100$