Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
3rd Edition
ISBN: 9781107189638
Author: Griffiths, David J., Schroeter, Darrell F.
Publisher: Cambridge University Press
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Chapter 5.3, Problem 5.20P
To determine

The average energy per free electron (Etot/Nd), as a fraction of the Fermi energy.

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The Fermi energy of copper at 300 K is 7.05 eV. (a) What is the average energy of a conduction electron in copper at 300 K? (b) At what temperature would the average translational energy of a molecule in an ideal gas be equal to the energy calculated in part (a)?
Silver has a Fermi energy of 5.48 eV. Calculate the electron contribution to the molar heat capacity at constant volume of silver, CV, at 300 K. Express your result (a) as a multiple of R and (b) as a fraction of the actual value for silver, CV = 25.3 J / mol#K. (c) Is the value of CV due principally to the electrons? If not, to what is it due?
JA silicon wafer is doped with 1015 cm 3 donor atoms. Assume light generates density of electrons and holes equal to 1018 cm-3.Calculate the total electron and hole concentrations and location of the quasi-Fermi levels for the electrons and holes with respect to the intrinsic Fermi level. (n = 1x1010 cm-3, Ne = 2.8x1019 cm-3, Ny = 1.04x1019 cm3, T = 300K). %3D
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