Fermi temperature for liquid 3He and neutron stars

[raintrek]

Homework Statement

Calculate T(fermi), the fermi temperature for

a) Liquid 3He (density 81kg/m^3) [these are not electrons]
b) neutrons in a neutron star (density 10^17 kg/m^3)

Homework Equations

n, number density = z*Na*p / M (Na=avogadro, z=valence,p=density,M=molecular mass)

Kf^3 = 3pi^2 * n (Kf = fermi radius)

Ef = hbar^2 * Kf^2 / 2*m (fermi energy)

Tf = Ef/Kb (Kb - boltzmann)

The Attempt at a Solution

Only ever done these where we're dealing with electrons (for ex, potassium etc). Not sure where to go with it...

 

[anorlunda]

Only ever done these where we're dealing with electrons (for ex, potassium etc). Not sure where to go with it...

That's not good enough. PF rules require that you show your attempt. What have you studied?
There must be something in your studies that hints at how to solve this problem.