Question: number 2 if possible, thanks. 2. Calculate the diffusion coefficient of copper at 843C ? The activation energy for the diffusion of copper in silver

number 2 if possible, thanks.

2. Calculate the diffusion coefficient of copper at 843C ? The activation energy for the diffusion of copper in silver is 3.21105J/mol. The value of D at 930K is 3.851012m2/s. (Use the temperature in kelvin). (15 points) 3. A aluminum rod with cylindrical shape of length 434mm is subjected to a load of 3357N. The elastic modulus of the rod is 80109N/m2 with a yield strength of 135 megapascal. Calculate the diameter of the aluminum rod to allow an elongation of 0.5mm after experiencing the load

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