Physics - Heat & Thermo Question with Solution | TestHub

A rectangle $ACBD$ is drawn on a $P$-$V$ diagram: $A\to C$ is isochoric (pressure rises), $C\to B$ is isobaric (volume rises), $A\to D$ is isobaric and $D\to B$ is isochoric. Along $ACB$, 150 cal of heat is given and 50 cal of work is done. Along $ADB$ the work done is 20 cal. Find the heat flowing into the system along $ADB$ in calories.