Question

In van der Waals, an equation of state of the gas law, the constant $b$ is a measure of:

• A. intermolecular repulsions
• B. intermolecular attraction
• C. volume occupied by the molecules
• D. intermolecular collisions per unit volume

Answer 1

The correct option is C volume occupied by the molecules

In van der Waals equation of state of the gas law, the constant $b$ is a measure of the volume occupied by the molecules.

It gives the effective size of the gas molecules. The greater value of $b$ indicates a larger size of the molecules and smaller compressible volume.

Option C is correct.