A hypothetical gas expands adiabatically such that its volume changes from $8$ litres to $27$ litres. If the ratio of final pressure of the gas to initial pressure of the gas is $\frac{16}{81}$. Then the ratio of $\frac{C_P}{C_V}$ will be
  • A$\frac{4}{3}$
  • B$\frac{3}{1}$
  • C$\frac{1}{2}$
  • D$\frac{3}{2}$
JEE MAIN 2023, Medium
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