The pressure $P$ of an ideal diatomic gas varies with its absolute temperature $T$ as shown in figure. The molar heat capacity of gas during this process is ........... $R$ [$R$ is gas constant]
A$1.7$
B$3.25$
C$2.5$
D$4.2$
Medium
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C$2.5$
c (c)
$C_V$ of diatomic $=\frac{5}{2} R$
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