Question

The ratio of units of vanderwaals
constant b to a
(A) atm. It . mol
(B) atm-1. lt 1 mole
(C) atm-it-mole 1
(D) atm. Lt. mole​

Answer 1

The ratio of units of Van der Waals  constant b to a  is : (B) Atm⁻¹L⁻¹mole.

- The unit of Van der Waals constant a is given as Atm L² mole⁻².

- The unit of Van der Waals constant b is given as L mole⁻¹.

- Hence, the ratio of units of the constants b to a = L mol⁻¹/Atm L² mole⁻²

⇒ b : a = Atm⁻¹L⁻¹mole

- So the correct answer is option (B).