'a' and 'b' are van der Waals' constants for gases. Chlorine is more easily liquefied than ethane because

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Q:17

'a' and 'b' are van der Waals' constants for gases. Chlorine is more easily liquefied than ethane because

a for Cl₂ > a for C₂H₆ but b for Cl₂ < b for C₂H₆

a for Cl₂ < a for C₂H₆ but b for Cl₂ > b for C₂H₆

a and b for Cl₂ > a and b for C₂H₆

a and b for Cl₂ < a and b for C₂H₆

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Four gases P, Q, R and S have almost same values of ‘b’ but their ‘a’ values (a, b are van der Waals constants) are in the order Q < R < S < P. At a particular temperature, among the four gases the most easily liquefiable one is

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