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1. a. If the electrical conductivity of aluminum is 3.8 107/Nm, estimate it's thermal conductivity at T = 293K (Lorentz number/ constant 2.20 10-8WN

1. a. If the electrical conductivity of aluminum is 3.8 107/Nm, estimate it's thermal conductivity at T = 293K (Lorentz number/ constant 2.20 10-8WN K-) b. The resistivity of the most useful metal copper at 20C is 1.69 10-8 ohm-m and the concen- tration of free electrons in copper is 8.5 1028/m. What is the momentum relaxation time.

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