Make a plot of how the thermal conductivity vs. temperature
will change for a pure semiconductor. How will this plot will change for a pure semiconductor. How will this plot
compare to that for a metal (show on the same figure)? compare to that for a metal (show on the same figure)?
Discuss your assumptions of the changes in Discuss your assumptions of the changes in heat capacity heat capacity,
mean free path mean free path, average speed average speed and type and number of the
heat carriers as a function of temperature. heat carriers as a function of temperature.
Ch. 8, #8) Two countertop materials look very similar; one is Ch. 8, #8) Two countertop materials look very similar; one is
natural marble and the other is synthetic polymer. They natural marble and the other is synthetic polymer. They
can be easily distinguished by their feel: one is cold to the can be easily distinguished by their feel: one is cold to the
touch and the other is not. Explain which is which and touch and the other is not. Explain which is which and
the basis in the difference of their thermal conductivities. the basis in the difference of