Consider a PEM $($polymer electrolyte memhrac$)$ fiel eell power module operating at $80C$ and andard atmospheric presure using bytrogen gas as a fuel and air $($a $10C$ and $60\%6$ relative humidity$)$ as an oxidant. The fuel cell has an effective area of $100c{m}^3$ and epentes at $0\mathrm{.}7V,$ while generating $0\mathrm{.}6Nc{m}^2$ of current. Fandry's constant is $96,485$ coulamits per mole of electrons.

a$)$ Brienly outline the desige and operation of the PEM fell cell power module using appropriate

$(15$ marks$)$ schematics to illustrate your answer.

b$)$ Calculate the electrical power generated $($in kW$)$ and thermal energy rejected $($in b$/$hin$)$ by $(15$ marks$)$ this fuel cell.