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Hydrogen fuel cell and thermodynamic
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A hydrogen fuel cell is an electrochemical cell that converts the chemical energy of hydrogen and oxygen into electricity. The overall reaction is 2H2 + O2 → 2H2O. The hydrogen is oxidized at the anode, and the oxygen is reduced at the cathode. The electrons released by the oxidation of hydrogen flow through an external circuit, generating electricity. The only product of the reaction is water, which is environmentally friendly.
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