Studying for final, this is one of the suggested questions, I have no idea how to approach it.(adsbygoogle = window.adsbygoogle || []).push({});

1. The problem statement, all variables and given/known data

A cylindrical aluminum rod of 2 mm in diameter and 5 cm in length has a thermal conductivity of 237 W m-1 K-1 at 300 K. Calculate the electron mobility in the rod if aluminum has 3 valence electrons per atom, density of 2.7 g cm-3 and atomic mass of 26.98.

2. Relevant equations

The way i see it is i need to calculate conductance and then drift mobility

n=3d*Na/Ma

c = e*n*Md

trying to find Md

3. The attempt at a solution

I can find the number of electrons/cm^-3

but i have no idea where to go from there.

How is electrical conductivity dependent on thermal conductivity??

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# Homework Help: Calculating electron mobility in a rod

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