a. The process which provides electrical current in a fuel cell is the direct combining of a molecule of oxygen and two molecules of hydrogen to form two molecules of water.b. A fuel cell is very like a lead-acid battery: energy is stored initially as chemical energy; and the total electrical energy able to be generated depends on the size of the electrodes.c. fuel cells have no greenhouse gas emissions or other pollutants in their operation, and they are highly reliable.d. Fuel cells are only able to operate on small scales; it is not practical to make large-scale fuel cells capable of generating tens of kW.e. The fuel cell can only be charged by running electricity through it in the opposite direction in order to form hydrogen and oxygen; then hydrogen and oxygen provide fuel for the cell to produce electricity.
Get a small windmill , use the power to make H2 , store it and drive a fuelcell.
i could propose a Samsung GT-S5233-A, via fact it is an entire touch demonstrate screen telephone, with a three.2MP digital camera, with a funky touch-sort device reminiscent of the single iPhones have, besides exceedingly much as good internet features. It has a noisy speaker, and the drag-and-drop widgets on the touch demonstrate screen are additionally an extra bonus. it may take a MicroSD, however the earphones, charger and USB cables have some subject concerns, via fact all of them plug into an identical port, so which you may not, for occasion, hear to music on the earphones and fee it on an identical time. it is low(ish) value ticket additionally make it fairly beautiful, besides because it is inbuilt fb, Google and YouTube features. it somewhat is an determination somewhat worth pondering.
I would decide between ans b) and d) but if you need to choose one, I would think that it'll be b) because you were asked about the features and solution b) has provided many features of a fuel cell in the answer. I'm not really sure but you can take this answer as a referenceI'm kinda sucky at Chemistry. sorry:(
