Following represents equation of state for n moles of real gas $\left[\mathrm{P}+\frac{{\mathrm{n}}^2\mathrm{a}}{{\mathrm{V}}^2}\right]\left(\mathrm{\nu }-\mathrm{nb}\right)=\mathrm{nRT}.$

select incorrect statement for a real gas.

In real gases, there are intermolecular forces of attraction due to which a gas molecule about to collide a wall and it collides with lesser velocity as compared to that of an ideal gas because forces of attraction hinders the movement of molecules.

In PV=nRT,

P stands for maximum pressure for gas molecules of ideal gas but in real gas, it was found to be lesser due to attraction forces, so van der Waal introduced the term an²/V² to to add to pressure to satisfy PV=nRT.

Hence, $\frac{{\mathrm{an}}^2}{{\mathrm{V}}^2}$ is pressure correction.