Question

If V is the volume of one molecule of a gas under given conditions, the van der Waals constant b is:

• A. \(4V\)
• B. \(\dfrac{4V}{N_0}\)
• C. \(\dfrac{N_0}{4V}\)
• D. 4VN₀

Hint:

van der Waals constant b accounts for finite molecular size.

Answer 1

The Correct Option is D

Step 1: For one mole: b = 4 × (actual volume of all molecules)
Step 2: b = 4VN₀