For real gases van der Waals equation is written as $ \left( p + \frac{an^2}{v^2} \right) (V - nb) = nRT $ where 'a' and 'b' are van der Waals constants. Two sets of gases are:

(I) Ω₂, CO₂, He and

Question

For real gases van der Waals equation is written as $ \left( p + \frac{an^2}{v^2} \right) (V - nb) = nRT $ where 'a' and 'b' are van der Waals constants. Two sets of gases are:

(I) Ω₂, CO₂, He and 
(II) CH₄, O₂, H₂.

The gases given in set-I in increasing order of 'b' and gases given in set-II in decreasing order of 'a', are arranged below. Select the correct order from the following:

Accepted Answer

(I) H₂ < O₂ < He < CO₂ (II) Ω₂ > CH₄ > H₂

Answer

(I) He < H₂ < CO₂ < O₂ (II) CH₄ > H₂ > O₂

Answer

(I) Ω₂ < He < H₂ < CO₂ (II) H₂ > O₂ > CH₄

Answer

(I) H₂ < He < O₂ < CO₂ (II) CH₄ > O₂ > H₂

AIPMT MAINS 2012 Chemistry Van der Waals Equation MCQ Question

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