Answer to Question #154379 in Physics for Luchian

Question

It was stated in the text that the Debye temperature thetaD is proportional to (Y/M)^1/2, where Y is Youngs modulus and M the atomic mass. For solids of similar chemical and structural characteristics, the parameters Y are nearly equal, and thus thetaD ~ 1/M^1/2. Plot thetaD versus M^-1/2 for the alkali metals (Li, Na, K, Rb, Cs), the noble metals (Cu, Ag, Au), the covalent crystals (C, Si, Ge, Sn), and discuss how well this prediction is satisfied.

Answer 1

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