Chemistry - Real Gas Question with Solution | TestHub
ChemistryReal GasLiquification & Critical Constants of GasesMedium2 minQB
ChemistryMediumsingle choice
Passage / Comprehension
The equation of state for a gas is: P = RT/(V − b) − a/(T·V2), where V is the molar volume of the gas and a and b are constants different than van der Waal's constant.
The molar volume of the system at the critical temperature and pressure, is
Options:
Answer:
A
Solution:
From the two critical conditions (first and second derivatives of P with respect to V both zero), dividing the second derivative condition by the first gives Vc = 3/2(Vc - b), hence Vc = 3b. This is the molar volume at the critical temperature and pressure. Hence Ans (a).
Stream:JEESubject:ChemistryTopic:Real GasSubtopic:Liquification & Critical Constants of Gases
⏱ 2mℹ️ Source: QB
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