$A$ given mass of gas expands reversibly from the state $A$ to the state $B$ by three paths $1, 2$ and $3$ as shown in the figure. If $w_1, w_2$ and $w_3$ respectively be the work done by the gas along three paths then
- A$w_1 > w_2 > w_3$
- B$w_1 < w_2 < w_3$
- C$w_1 = w_2 = w_3$
- D$w_2 < w_3 < w_1$
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