Chemistry - Real Gas Question with Solution | TestHub

ChemistryReal GasLiquification & Critical Constants of GasesMedium2 minQB
ChemistryMediumstatement

Statement 1: Above critical temperature, a substance cannot exist in liquid state.

Statement 2: Above critical temperature, the average kinetic energy of the molecules exceeds the maximum energy with which intermolecular attractions could bind them together in the liquid state.

Options:

Answer:
A
Solution:

Statement 1 is correct: above Tc no applied pressure can liquefy the gas. Statement 2 gives the kinetic reason: above Tc the molecular kinetic energies are so large that intermolecular attractions can no longer bind the molecules into a liquid, so the liquid state cannot exist above Tc. II explains I. Ans: (a).

Stream:JEESubject:ChemistryTopic:Real GasSubtopic:Liquification & Critical Constants of Gases
⏱ 2mℹ️ Source: QB

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