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Question: Answered & Verified by Expert
An ideal gas, obeying kinetic theory of gases can not be liquefied, because
ChemistryStates of MatterNEET
Options:
  • A it solidifies before becoming a liquid
  • B forces acting between its molecules are negligible
  • C its critical temperature is above 0°C
  • D its molecules are relatively small in size
Solution:
1185 Upvotes Verified Answer
The correct answer is: forces acting between its molecules are negligible
A gas can only be liquified, if some forces of attraction are acting in its molecules. Since, an ideal gas is devoid of force of attraction in its molecules, therefore it can not be liquefied.

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