The given diagram shows four processes i.e., isochoric, isobaric, isothermal and adiabatic. The correct assignment of the processes, in the same order is given by
JEE MAIN 2019, Medium
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isochoric $\rightarrow$ Process d
Isobaric $\rightarrow$ Process a
Adiabatic slope will be more than isothermal so
Isothermal $\rightarrow$ Process b
Adiabatic$\rightarrow$ Process $c$
Order $\rightarrow$ d a b c
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