Calculation of the Lorenz number, (a) Application of kinetic theory to the electron gas in a metal
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Calculation of the Lorenz number,
(a) Application of kinetic theory to the "electron gas" in a metal3 gives for the Lorenz number L = π2/3(K/e)2 in which K is the Boltzmann constant and e is the charge on the electron. Compute L in the units given under Eq. 9.5-1.
(b) The electrical resistivity, 1/ke, of copper at 20oC is 1.72 x 10-6ohm ∙ cm. Estimate its thermal conductivity in W/m o K using Eq. 9A.6-1, and compare your result with the experimental value given in Table 9.1-4.
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