5. a) Determine the fraction of surface sites occupied with Ar atoms if the site energy...

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5. a) Determine the fraction of surface sites occupied with Ar atoms if the site energy is A-0.6, 0.7, and 0.8 eV, assuming a gas pressure of 1 atm and T-300 K. b) Show that the crossover from near-zero to near-full occupancy occurs when u - -A. That is, f-1/3 when the chemical potential equals the energy of a bound atom. For a particular surface, A is fixed and u is controlled by the pressure. 5. a) Determine the fraction of surface sites occupied with Ar atoms if the site energy is A-0.6, 0.7, and 0.8 eV, assuming a gas pressure of 1 atm and T-300 K. b) Show that the crossover from near-zero to near-full occupancy occurs when u - -A. That is, f-1/3 when the chemical potential equals the energy of a bound atom. For a particular surface, A is fixed and u is controlled by the pressure.

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