Carbon-monoxide poisoning happens when CO replaces 02 on Hb (hemoglobin) molecules in the blood stream. Consider a model of Hb consisting of N sites, each wit of which may be empty (energy 0), occupied by 02 (energy El), or occupied by CO (energy E2). At body temperature 37°C, the fugacities of 02 and CO are respectively zi = 10-5 and z2 = 10-7. (a) Consider first the system in the absence of CO. Find 61 (in eV) such that 90% of the Hb sites are occupied by 02. (b) Now admit CO. Find E2 (in eV) such that 10% of the sites of occupied by 02.
