A chemist measures a reaction rate as $2.5 imes 10^{-3}$ mol L$^{-1}$ $s^{-1}$. Express this rate in molecules $cm^{-3}$ $\mu s^{-1}$ (molecules per cubic centimeter per microsecond). Avogadro's number = $6.022 imes 10^{23}$ molecules/mol.

The density of a substance is 2 g/cm³. What is its density in kg/m³?

The dimensions of physical quantity X in the equation ${\rm{Force\;}} = \frac{X}{{{\rm{Density\;}}}}$ is given by

Energy per unit volume represents

Which pair has the same dimensions

The density of a substance is given as 0.8 g/$cm^3$. Convert this density to kg/$m^3$.

Which of the following pairs has same dimensions?

Which one of the following does not have the same dimensions

The physical quantity which has the dimensional formula $\left[ {{{\rm{M}}^1}{{\rm{T}}^{ - 3}}} \right]$ is

Which of the following five physical parameters have the same dimensions (A) Energy density (B) Refractive index (C) Dielectric constant (D) Young’s modulus (E) Magnetic field