Question

In van der Waals' equation of state for non-ideal gas, the term that accounts for intemolecular forces is:

• A. $(V-b)$
• B. $RT$
• C. $(p+\frac{a}{V^2})$
• D. $(RT{)}^{-1}$

Answer 1

Answer: (C)

$(p+\frac{a}{V^2})$

The Van der Waals equation of state for 1 mole of a gas is $(p+\frac{a}{V^2})(V-b)=RT$.

The term $(p+\frac{a}{V^2})$ is a correction for the intermolecular forces.

The term $(V-b)$ is a correction for the molecular volume.

So, the correct option is $C$