Tuesday
July 22, 2014

Homework Help: Chemistry

Posted by Anon on Friday, November 15, 2013 at 2:28pm.

a)The Young's modulus for a material is 5.0*10^10 N/m2. The material is stretched to a strain of 4.0*10^-3. How much elastic energy will be expended? (Express your answer in J/m3)

Knowing that the energy associated with the formation of 1 mole of vacancies in copper (Cu) is 104 kJ, determine the vacancy density (nv/cm3) in Cu at 1366 K. Assume the pre-exponential factor is one.


Can someone help me with those questions? I can help with the rest!!

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