ch41-p025 - 25. (a) Combining Eqs. 41-2, 41-3 and 41-4...

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25. (a) Combining Eqs. 41-2, 41-3 and 41-4 leads to the conduction electrons per cubic meter in zinc: n = × −− 2 7133 6537 10 131 10 131 10 23 23 29 3 (. ) .. g/cm g / mol) / (6.02 mol) cm m . 3 3 (b) From Eq. 41-9, 23 4 2 2 9 3 2 / 3 2/3 31 19 0.121 0.121(6.63 10 J s) (1.31 10 m ) 9.43eV. (9.11 10 kg)(1.60 10 J / eV) F e h En m ×⋅ × == = ×× (c) Equating the Fermi energy to 1 2 2 mv eF we find (using the
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