Under what conditions can an ideal gas,which follows the kinetic gas equation,be liquefied?

  • A
    When its temperature is above the critical temperature.
  • B
    When its pressure is above the critical pressure.
  • C
    When its pressure is above the critical pressure but its temperature is below the critical temperature.
  • D
    It cannot be liquefied for any value of $P$ and $T$.

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