Silver has a Fermi energy of 5.48eV. 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?