States of Matter

States of Matter

Question

In Vander Waals equation of state of the gas law, the constant ‘b’ is a measure of 

  • intermolecular repulsions

  • intermolecular collisions per unit volume

  • Volume occupied by the molecules

  • intermolecular attraction

Answer

C.

Volume occupied by the molecules

Vander Waals' equation for one mole of a gas is 
open square brackets straight P space plus straight a over straight V squared close square brackets left square bracket straight V minus straight b right square bracket space equals space RT
where, b is the volume correction i.e., the volume occupied by the molecules.

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