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JEE Main20238 Apr 2023Evening ShiftChemistryStates of MatterActual

Arrange the following gases in increasing order of van der Waals constant ' a ' (A) Ar (B) CH 4 (C) H 2 O (D) C 6 H 6 Choose the correct option from the following.

Options

  1. AD, C, B and A
  2. BB, C, D and A
  3. CC, D, B and A
  4. DA, B, C and D

Correct answer

D. A, B, C and D

Step-by-step solution

The van der Waals' constant ′ a ′   is directly proportional to the intermolecular force of attraction; hence, the gas with greater value of   ′ a ′ can be most easily liquefied.The values of Vander Waal's constant ' a ' for the given gases are: Gases Vander Waal's Constant ' a ' A. Ar 1 . 35   L 2 atm mol 2 B. CH 4 2 . 25 L 2 atm mol 2 C. H 2 O 5 . 536 L 2 atm mol 2 D. C 6 H 6 18 . 57 L 2 atm mol 2 ∴   Increasing order of ' a ' f

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