Which is incorrect about an ideal gas?
Correct answer: C. Can be liquefied easily
- A. No force of attraction between molecules
- B. No example in nature
- C. Can be liquefied easily
- D. Obeys gas laws at all temperatures and pressures
Explanation
Ideal gases cannot be liquefied easily. This is because ideal gases have no intermolecular forces, which are the forces that hold molecules together in a liquid. Without intermolecular forces, the molecules of an ideal gas would simply fly apart when the pressure is increased. An ideal gas cannot be liquefied easily because forces between its molecules are negligible, as a result the molecules do not come closer enough together.
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About Gases
Gas behaviour is explained through the kinetic molecular theory and the relationships among pressure, volume and temperature. Work includes STP, Boyle's and Charles's laws, absolute zero, the ideal gas equation, and the distinction between ideal and real gases, especially the effects of intermolecular forces and molecular volume.
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