Cancer cells are cultured in a 1 mL microfluidic platform. Under operating conditions, oxygen solubility in the medium is 4 * 10 ^ - 3 * kg / (m ^ 3) ka is 0.15 * 0.5 ^ - 1 and the specific rate of oxygen uptake is 20 mmol/gh

a) What is the maximum possible cell concentration in a microfluidic platform?

b) If the oxygen uptake rate decreases to & mmol/gh, what will be the maximum cell concentration?