The critical temperatures $(T_C)$ of some gases are given below:
Gases $H_2, He, O_2$
$T_C \ (K)$ $33.2, 5.3, 154.3$

Based on the above data,what is the order of liquefaction of these gases? Start writing the order from the gas that liquefies first.

  • A
    $H_2, He, O_2$
  • B
    $He, O_2, H_2$
  • C
    $O_2, He, H_2$
  • D
    $O_2, H_2, He$

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