The equation for real gas is given by \(\left(\mathrm{P}+\frac{\mathrm{a}}{{\mathrm{V}}^{2}}\right)(\mathrm{V}-\mathrm{b…

The equation for real gas is given by \(\left(\mathrm{P}+\frac{\mathrm{a}}{{\mathrm{V}}^{2}}\right)(\mathrm{V}-\mathrm{b})=\mathrm{RT}\), where P, V, T and R are the pressure, volume, temperature and gas constant, respectively. The dimension of \({\mathrm{ab}}^{-2}\) is equivalent to that of :

[JEE Main 2025, 2 Apr (Shift 1)]