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Q.
$P-T$ diagram is shown in figure. Choose the corresponding $V-T$ diagram.
Thermodynamics
Solution:
In the process $BC$, the slope of PT graph remains constant. It means that the process $BC$ is isochoric. the pressure at $B$ is less so the volume at $B$ will be larger than $A$ :
$
V _{ B }> V _{ A }
$
Whereas the volume at different points can be expressed as:
$
V _{ B }= V _{ C }, V _{ D }> V _{ C }
$
