Question

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

• A. $nb$
• B. $nRT$
• C. $n^{2}a$
• D. none ot these

Answer 1

Answer: (C)

$n^{2}a$

van der Waal's equation,

$(P+\frac{a}{V^2})(V-b)=RT$

$(P+\frac{a{n}^2}{V^2})(V-nb)=nRT$

Here, term for Intermolecular forces is $a{n}^2$.