Example 14.1 The diffusivity coefficient of oxygen into a fermentation broth was noted to be 7.3 x 10-10 m/s. The thickness of the stagnant liquid film was calculated to be 5.1 microns. Calculate...

please do 14.1 only

Extracted text: Example 14.1 The diffusivity coefficient of oxygen into a fermentation broth was noted to be 7.3 x 10-10 m/s. The thickness of the stagnant liquid film was calculated to be 5.1 microns. Calculate AIZIRWAN M the mass transfer coefficient using film theory. Example 14.2 In the aerobic fermentation process of Example 14.1, air is bubbled from bottom through a sparger. The air bubble has a diameter of 2.6 mm and has a rise velocity of 14 cm/s. Find the mass transfer coefficient based on penetration theory. Solution: It is also direct application of Eq (14.6) and Eq (14.5). We calculate the penetration time period,0 by Eq (14.6) and then calculate K, by Eq (14.5).