Vanderwaals equation explained real gas behaviour by making volume correction and pressure correction. Vanderwaal’s constant ‘b’ is a measure of——-and Vanderwal’s constant ‘a’ is measure of —————-respectively

Vanderwaals equation explained real gas behaviour by making volume correction and pressure correction. Vanderwaal's constant ‘b’ is a measure of-------and Vanderwal's constant ‘a’ is measure of ----------------respectively

  1. A

    Attractions between the molecules ; size of molecules

  2. B

    Repulsions between the molecules ; volume occupied by the molecules

  3. C

    Volume occupied by the molecules ; Attractions between the molecules

  4. D

    Volume of the vessel ; size of molecules.

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    Solution:

    Vanderwaals constant 'b' is called covolume (or) excluded volume. It is the actual volume occupied by the gas molecules.

    Vanderwall's constant ‘a’ is measure of molecular attractions.

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