(a)Would you expect Equation 17.7 to be valid for ceramic and polymeric materials? Why or...

(a)Would you expect Equation 17.7 to be valid for ceramic and polymeric materials? Why or why not?

(b) Estimate the value for the Wiedemann–Franz constant L [in Ω • W/(K)2] at room temperature (293 K) for the following nonmetals: silicon (intrinsic), glass-ceramic (Pyroceram), fused silica, polycarbonate, and polytetrafluoroethylene. Consult Tables B.7 and B.9 in Appendix B.

Equation 17.7