Question

what are fuel cells how are they different from galvanic cell give the construction oh H2, O2 fuel cells​

Answer 1

Answer:

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Explanation:

The overall Equation see in pic shared

A fuel cell is a galvanic cell in which the chemical energy of fuel-oxidant system is converted directly into electrical energy.

Conventional Galvanic cell converts chemical energy into electrical energy by spontaneous redox reactions.

Fuel cell convert energy of combustion of fuels like hydrogen, methane etc., into electrical energy. These cause less pollution.

H2 - 02 fuel cell : In this cell, hydrogen and oxygen is bubbled through porous carbon electrodes into Conc. NaOH solution. Electrodes are embedded with suitable

The cell functions as long as the reacting gases are in supply. The heat of combustion is directly converted into electrical energy.

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