Which of the following quantities have dimensions of $\frac{{\pi {{\Pr }^4}}}{{3Ql}}:$ ( $Q =$ Volume flow rate in $m^3/s$ and $P =$ pressure)

The fundamental physical quantities that have same dimensions in the dimensional formulae of torque and angular momentum are

Define dimensional formula and dimensional equation by using suitable example.

Given below are two statements :
Statement $(I)$ : Dimensions of specific heat is $\left[\mathrm{L}^2 \mathrm{~T}^{-2} \mathrm{~K}^{-1}\right]$
Statement $(II)$ : Dimensions of gas constant is $\left[\mathrm{ML}^2 \mathrm{~T}^{-1} \mathrm{~K}^{-1}\right]$

The expression $[M{L^2}{T^{ - 2}}]$ represents

Out of the following which pair of quantities do not have same dimensions