Consider an $H_2-$Air $10$ cell stack operating steadily in series with $10c{m}^2$ active surface area per electrode with a current density $100m\frac{A}{c}{m}^2.$ The nominal voltage is $0\mathrm{.}6V$ per plate.

a$.$ calculate the molar flow of $H_2$ & air delivered to anode and cathode, respectively; if fuel utilization efficiency is $50\%$ and cathodic stoichiometry is $2\mathrm{.}3$

b$.$ what is the rate of water generation in $\frac{g}{h}$

c$.$ Can the generation rate of water be greater or lesser than the value calculated?

d$.$ What will be stack voltage