(a) Describe the features that one desires when selecting a fuel cell electrode material. Describe and illustrate both features of electrode structure and properties as well as interactions between the electrodes and other fuel cell components (e. g., reactant gases, electrolyte, product gases, interconnects). Identify some specific electrode materials and why they work well for a (b) PEMFC and (c) SOFC, respectively

Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward

When a lead acid car battery is recharged by the alternator, it acts essentially as an electrolytic cell in which solid lead(ii) sulfate is reduced to lead at the cathode and oxidized to solid lead(ii) oxide at the anode. suppose a current of is fed into a car battery for seconds. calculate the mass of lead deposited on the cathode of the battery.

Why is a noble gas different from other elements?