At 20C, water saturated with air moves through a hydrophobic hollow fiber at a speed of 50 cm/s. pass through the membrane. The hollow fiber is 1 m long and has an inner diameter of 500 m. A vacuum is applied to the outside of the hollow fiber to remove oxygen as soon as it diffuses into the construction wall. made it Calculate the mass transfer coefficient for oxygen. (Use Sh=1.62 Gz1/3 , Gz=m/(Dv*L*rho)=/4* Re*Sc*D/L, Dv at 26 C = 2.41*10-5cm2 /sec)