For a certain process, pressure of diatomic gas varies according to the relation $P = aV^2$, where $a$ is constant. What is the molar heat capacity of the gas for this process?
  • A$\frac{{17R}}{6}$
  • B$\frac{{6R}}{{17}}$
  • C$\frac{{13R}}{6}$
  • D$\frac{{16R}}{7}$
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