(1) Using the oxygen partial pressure on both sides of the respiratory membrane, find the diffusing capacity DL value. (Unit should be cm3 oxygen, mmHg, min) , Vnet=250ml/min

(2) Using the given data, find the total surface area of alveoli.

DKA = net 8 (Palv Pcap) = D. (Palv Pcap) = = KP02 o2 using bility coenicient. there (P cap Palv) dc Jx = -D = -DK dx 8 18 K K (mL gas/mL-atm) DE KE Do, Ko2 alv capillary 02 1 20 alveolus P. CO2 0.024 0.570 0.018 0.012 0.008 0.81 N. He X=0 x=8 respiratory membrane 0.53 0.93 Table 7.2 Composition of air, alveolar gas, arterial blood, and venous blood (in mmHg) Venous blood Arterial blood Alveolar gas Dry air Atmosphere Expired air 40 100 100 160 159 120 46 40 40 0.3 0.3 27 Po Poor Ru PHO 0 0 559 600 597 566 47 0 3.7 47 Giren bata DKA = net 8 (Palv Pcap) = D. (Palv Pcap) = = KP02 o2 using bility coenicient. there (P cap Palv) dc Jx = -D = -DK dx 8 18 K K (mL gas/mL-atm) DE KE Do, Ko2 alv capillary 02 1 20 alveolus P. CO2 0.024 0.570 0.018 0.012 0.008 0.81 N. He X=0 x=8 respiratory membrane 0.53 0.93 Table 7.2 Composition of air, alveolar gas, arterial blood, and venous blood (in mmHg) Venous blood Arterial blood Alveolar gas Dry air Atmosphere Expired air 40 100 100 160 159 120 46 40 40 0.3 0.3 27 Po Poor Ru PHO 0 0 559 600 597 566 47 0 3.7 47 Giren bata