consider a fuel cell operating at 800 degrees Celcius, and 1atm. In the cathode, humidified air is supplied with the molefraction of water vapor equal to 0.1. If the fuel cell employscircular flow channels with a diameter of 1 mm, find the maximumvelocity of air that can be used while still maintaining laminarflow.
(Fuel Cell Fundamentals, O'Hayre - Chapter 5 Problem 5.6)
