Calculating Quantum States in Energy Range: Proving g(E)dE Equation

[intr199]

How to calculate number of quantumstaes or unit cells within energy range E and E+dE in the phase space to prove the eqn: g(E)dE=[(8π√2V)/h^3]*m^(3/2)√EdE

 

[rude man]

So you're trying to derive the equation? If not, haven't you answered your own question?