Match the graphs in Column-$I$ with the processes in Column-$II$:
Column-$I$ Column-$II$ $(a)$ Horizontal line parallel to $V$-axis $(i)$ Adiabatic process $(b)$ Vertical line parallel to $P$-axis $(ii)$ Isobaric process $(iii)$ Isochoric process
| Column-$I$ | Column-$II$ |
| $(a)$ Horizontal line parallel to $V$-axis | $(i)$ Adiabatic process |
| $(b)$ Vertical line parallel to $P$-axis | $(ii)$ Isobaric process |
| $(iii)$ Isochoric process |
(A) In a $P-V$ diagram:
$1$. $A$ horizontal line parallel to the $V$-axis indicates that the pressure $P$ remains constant as the volume $V$ changes. This represents an isobaric process. Thus,$(a)$ corresponds to $(ii)$.
$2$. $A$ vertical line parallel to the $P$-axis indicates that the volume $V$ remains constant as the pressure $P$ changes. This represents an isochoric process. Thus,$(b)$ corresponds to $(iii)$.
$1$. $A$ horizontal line parallel to the $V$-axis indicates that the pressure $P$ remains constant as the volume $V$ changes. This represents an isobaric process. Thus,$(a)$ corresponds to $(ii)$.
$2$. $A$ vertical line parallel to the $P$-axis indicates that the volume $V$ remains constant as the pressure $P$ changes. This represents an isochoric process. Thus,$(b)$ corresponds to $(iii)$.
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