1.

Which of the following is not correct for a fuel cell?

Answer»

It can strore chemical ENERGY
Reactants are continously spplied to the cell
Products are continuosly removed from the cell
It is a voltaic cell

Solution :A fuel cell is ESSENTIALLY a battery but if differs by operating with a continuous supply of energetic reactants, or fuel. The first fuel cell was INVENTED in `1839` by William Groves. He obtained the cell b y electrolyzing water and collecting the `H_(2)` and `O_(2)` in SMALL, inverted test tubes. After removing the battery current would flow from the cell. In effect, the electrolysis charged the cell, after which it operated as a fuel cell.
In its simplest form, `H_(2)//O_(2)` fuel cell consists of an electrolyte solution, such as sodium or potassium hydroxide solution, and two inert electrodes. `H_(2)` and `O_(2)` gases are bubbled through the ANODE and cathode compartments.
Unlike batteries, fuel cell do not store chemical energy.


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