The electron flow mobility in silver was measured at 56 cm2V-1s-1 at room temperature.

The atomic weight and density are 107.87 gmol-1 and 10.50 gcm-3, respectively.

1) Assuming that each Ag atom contributes to the conduction electron, calculate the resistivity of silver at 27.

Compare this value with the measured value of 1.6m10-8 m at the same temperature and explain the reason for the difference

2) Calculate the thermal conductivity of silver at temperatures of 27 and 0.

8. Ag 56 cmV-1s-1 . 107.87 gmol-1, 10.50 gcm-30. 1) Ag 27 . 1.6 x 10-80m 2) 27 0