Q. The term that corrects for the attractive forces present in a real gas in the van der Waals’ equation is
A) $nb$
B) $n^{2}\ a/V^{2}$
C) $- (n^{2}a/V^{2})\$
D) $- nb$
Explanation
(b)
In the van der Waals’ equation :
$\left( p + \frac{n^{2}a}{V^{2}} \right)(V - nb) = nRT$
The pressure correction factor $(n^{2}a/V^{2})\$accounts for intermolecular attraction in real gas.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.