A thermodynamic system is taken from an original state $D$ to an intermediate state $E$ by the linear process shown in the figure. Its volume is then reduced to the original volume from $E$ to $F$ by an isobaric process. The total work done by the gas from $D$ to $E$ to $F$ will be $......J$
JEE MAIN 2022, Medium
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$W _{ DE }=\frac{1}{2}(600+300) 3\,J$
$=1350\,J$
$W _{ EF }=-300 \times 3=-900\,J$
$W _{ DEF }=450\,J$
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