Match the following ( $f$ is number of degrees of freedom):
  Gases   $C_P/C_V$ value
$A$ Monoatomic $I$ $(4+f)/(3+f)$
$B$ Diatomic (rigid) $II$ $5/3$
$C$ Diatomic (non-rigid) $III$ $7/5$
$D$ Polyatomic $IV$ $9/7$

  • A
    $A-II, B-III, C-IV, D-I$
  • B
    $A-II, B-I, C-III, D-IV$
  • C
    $A-IV, B-III, C-I, D-II$
  • D
    $A-II, B-III, C-IV, D-I$

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