If $\gamma = 2.5$ and the final volume is $\frac{1}{8}$ times the initial volume, then the final pressure $P'$ is equal to (Initial pressure $= P$).

  • A
    $P' = P$
  • B
    $P' = 2P$
  • C
    $P' = P \times 2^{15/2}$
  • D
    $P' = 7P$

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