(a) Using the grand canonical ensemble, determined the fraction of occupied sites f = as a unct1on o p, t e part1 pressure 0 2. rite your 11 answer 1n N 2 f ' f h '31 f O W ' 31 ' terms of p, J, and pg E anBTeE/kBT. (1)) Take the limit of your answer for f as J > 0, and show that you obtain the result derived in class for myoglobin. Explain why this result makes sense. (c) Determine pm, the pressure at which the fraction of occupied sites f is 1/2, for arbitrary J. compare the cases when J > 0, J = 0, and J