Question

In van der Waal's equation for a non–ideal gas, the term that accounts for inter molecular forces is:

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

Answer 1

The correct option is C $\frac{a}{V^2}$

In van der Waal's equation for 1 mole of a gas $(P+\frac{a}{V^2})(V-b)=RT$

$\frac{a}{V^2}$ is the measure of intermolecular forces & b is for volume correction.