Chemistry

posted by .

I posted a question earlier today to determine the vacancy density in copper. The formation of 1 mole in Cu is 104kJ. Temperature is 1305K. My result is
-2.19*10^-22. This does not look right to me. Any ideas. Thanks.

  • Chemistry -

    for 1369 K answer is 9.10814144008e+18

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    A formation energy of 1.11 eV is required to create a vacancy in a particular metal. At 777oC there is one vacancy for every 22,200 atoms. At what temperature will there be one vacancy for every 11,100 atoms?
  2. chemistry

    At 10°C below the melting point of aluminum, 0.08% of the atom sites are vacant. At 484°C only 0.01% are vacant. Given this information, determine the energy of vacancy formation (ΔHv) for aluminum. Energy of vacancy formation …
  3. chemistry

    the energy of vacancy formation in palladium is 1.5 eV.at 888 C there is one vacancy formation for every million (10^6) atoms sites. what temperature would be achieved a vacancy fraction of one for every thousand (10^3)atoms sites?
  4. Chemistry

    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 1139 K. Assume the pre-exponential factor is one.
  5. Chemistry

    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?
  6. chemestry

    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 1197 K. Assume the pre-exponential factor is one.
  7. chemistry

    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 1284 K. Assume the pre-exponential factor is one. unanswered
  8. chemistry

    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 1085 K. Assume the pre-exponential factor is one. unanswered
  9. solid chemestry

    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 1197 K. Assume the pre-exponential factor is one.
  10. chemistry

    determine the density in copper at 1305K. 1 mole of vacancies in copper is 104kJ. The answer I calculated this time is 8.4572*10^22. I am not sure if this correct. Thanks.

More Similar Questions