Chemistry - Real Gas Question with Solution | TestHub
ChemistryReal GasLiquification & Critical Constants of GasesMedium2 minQB
ChemistryMediumstatement
Statement 1: Carbon dioxide (Tc = 304 K) can be liquefied at 298 K by applying sufficient pressure.
Statement 2: At 304 K, the densities of liquid and gaseous CO₂ become identical.
Options:
Answer:
B
Solution:
Statement I is correct: 298 K < Tc, so compression can liquefy CO₂ there. Statement II is also correct: at the critical temperature the two phases merge into one fluid of equal density. But the critical-point density fact does not explain why liquefaction works at 298 K (that follows simply from being below Tc), so II is not the correct explanation of I. Ans: (b).
Stream:JEESubject:ChemistryTopic:Real GasSubtopic:Liquification & Critical Constants of Gases
⏱ 2mℹ️ Source: QB
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