Question

Calculate the surface energy for a copper crystal for (110) plane. Copper has FCC structure with atomic radius 1.28 A. The heat of vaporization is 341 kJ mol.

05 May 2025
Answer :
Word Count : 236

To calculate the surface energy for a copper crystal on the (110) plane, we can use the following formula:

γ=12⋅ΔHvaporizationNA⋅A\gamma = \frac{1}{2} \cdot \frac{\Delta H_{\text{vaporization}}}{N_{\text{A}} \cdot A}

Where:

  • γ\gamma is the surface energy (in J/m²),

  • ΔHvaporization\Delta H_{\text{vaporization}} is the heat of vaporization per ___ _______ ___ ___ _____ __________ _________ _____ ________ __________ __________ ______.
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