Specific heats of an ideal gas at constant pressure and volume are denoted by $C_p$ and $C_v$ respectively. If $\gamma = \frac{C_p}{C_v}$ and $R$ is the universal gas constant,then $C_v$ is equal to:

  • A
    $\frac{(\gamma-1)}{(\gamma+1)}$
  • B
    $\frac{(\gamma-1)}{R}$
  • C
    $R \gamma$
  • D
    $\frac{R}{(\gamma-1)}$

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