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Problem \#7. Each Au atom contributes one conduction electron in a gold solid bar. The resistivity of gold at room temperature is 22.36nm, and the gold atomic density is 5.911028 atoms /m3. The mean thermal speed of electron in gold is 1.4106m/sec. Please calculate the following, 1) what is the electron mobility in Gold solid at room temperature? 2) what is the mean free path? Answer: 1) the electron mobility in Gold at room temperature is: 2) the mean free path is: nm Calculation Answer: (this is Kasap Problem 2.3) 1) the electron mobility in Gold at room temperature is: 47.2cm2/Vsec 2) the mean free path is: 37.6nm