Question
In van der Waals equation of state for a non-ideal gas, the term that accounts for intermolecular forces is
A.
$$\left( {V - b} \right)$$
B.
$$RT$$
C.
$$\left( {p + \frac{a}{{{V^2}}}} \right)$$
D.
$${\left( {RT} \right)^{ - 1}}$$
Answer :
$$\left( {p + \frac{a}{{{V^2}}}} \right)$$
Solution :
$$\left( {p + \frac{a}{{{V^2}}}} \right)\,\,\left( {V - b} \right) = RT;\,{\text{Here}}\left( {p + \frac{a}{{{V^2}}}} \right)$$
represents the intermolecular forces.