If Avogadro's number $N_A$ is hypothetically changed from $6.022 imes 10^{23} \mathrm{~mol}^{-1}$

Question

If Avogadro's number $N_A$ is hypothetically changed from $6.022 	imes 10^{23} \mathrm{~mol}^{-1}$ to $6.022 	imes 10^{20} \mathrm{~mol}^{-1}$, which of the following physical quantities would remain completely unchanged?

Professor PC Thomas Classes · Answer

(b) : The ratio of elements in a compound is dictated by the chemical formula based on the Law of Definite Proportions and is a fundamental atomic property independent of the definition of a mole. Changing Avogadro's number fundamentally redefines the quantity of particles in a 'mole', which directly alters the mass and volume of one mole.