Toraise the oxygen concentration level in wastewater, air is injected through spargers located near the bottom of a water-holding, aeration tank. Oxygen is transferred from the released air bubbles into the surrounding aqueous phase. Oxygen has a Partial pressure of 0.21 atm in the air, and a concentration of 8104kmoles/m3 in the wastewater. Density of water is 997kg/m3, and molecular weight is 18g/mol. Determine 1. Overall liquid mass-transfer coefficient KG : 2. Percent resistance encountered in the liquid phase at 293K : 3. Flux of A 4. Concentration PA, on the yas side of the interface and CA,, on the liquid side of the interface. Data: kl2.15105k moles /m2s(kmole/m3) ka=9.2810kmoles/m2sPa;H1=4.06109Pa/ imoles of oxygen per total moles of solution)